Akira Mimasaka (美作 あきら,Mimasaka Akira) was a member of the F4, consisting of his friends Tsukasa Domyoji, Rui Hanazawa, and Sojiro Nishikado. Being more mature than his friends, he was the one who held the group together. His family consisted of his father, mother, and twin sisters, Emu and Memu. Akira was also known for his interest in older women.
Akira was born on February 28 to a wealthy family. His mother gave birth to him when she was only twenty years old. He had two much younger twin sisters named Emu and Memu. As he grew older, Akira found himself taking care of his youthful, immature mother. He became attracted to "older, more settled women" because of his home environment.
After graduating from middle school, Akira moved on to Eitoku Senior High with his childhood friends, now known as the F4. The group eventually took over the school and defied several school policies, including wearing street clothes. They also handed out red slips to those who opposed them.
Akira: "Going after a guy's okay...but bullying a girl isn't my speed."
Sojiro: "Besides, what's it have to do with us? You got kicked, Tsukasa, and now you're all mad."
Akira and the F4 first encountered Tsukushi Makino, when her friend hit Tsukasa by accident. Tsukushi protected her, earning herself a red card. However, instead of quietly leaving school, Tsukushi stood up to them by giving them her own "declaration of war". Akira and Sojiro were impressed by her "spunky" actions, though they did not think she would last long. Later, Akira commented that Tsukushi was "kinda cute" up close, while Sojiro compared her to Tsukasa's sister Tsubaki. A couple days later, Akira learned that Tsukasa had hired some guys to assault Tsukushi. He called it "sick" and thought that Tsukasa was responding to his sister's abuse from years earlier. Several days later, Akira and Sojiro decided to leave Tsukushi alone. Akira feeling that "bullying a girl is [not his] speed."
The next day, he and Sojiro were eating lunch together at lunch, while discussing Shizuka. Tsukushi happened to walk by, so they invited her to join them. They revealed to her that Shizuka was Rui's first love. Shizuka arrived the following day and promptly came to Eitoku to see the F4. She greeted Akira, Sojiro, Tsukasa, and Rui each with a kiss. They then left to go eat and dance. A day later, Tsukushi's friend Kazuya Aoike transferred to Eitoku, which irritated Tsukasa. He gave Kazuya a red slip "without consulting" the others. The F4 and Shizuka were having lunch at the university, when Tsukushi and Kazuya were chased into the room by bullies. Rui protected Tsukushi, angering Tsukasa, who responded by ending his friendship with Rui. A couple of days later, Tsukasa told them that they were going to Atami instead of Hawaii for the summer.
Akira and the others went to Atami on Tsukasa's yacht. He was surprised to meet Tsukushi on the beach. Shizuka gave Tsukushi a makeover for the party held that night. Akira praised her skills in making Tsukushi shine, saying "Gotta hand it to Shizuka." The next morning, he and Sojiro teased Tsukasa and Tsukushi about kissing at the party. That night, Tsukushi accidentally ran into Akira and Sojiro in a room with three girls. She was quickly kicked out. Later that night, the tryst was interrupted again when Tsukasa burst in the room to invite them to eat on deck. Akira was shocked to learn that Tsukasa spent his whole night fishing. Tsukasa later asked them to take a piece to grilled fish to Rui, but they refused telling him to do it himself.
Start of fall term
Tsukasa: "It's the first time in my life anyone's made such a fool of me."
Sojiro: "Are you serious? Forget about that pauper."
Akira: "Rui's so stuck on Shizuka, he doesn't even care if Tsukushi's alive."
On the first day of the fall term, Tsukasa picked him and Sojiro up early for school. The two were dumbfounded when they realized his reason was to play a childish "prank" on Tsukushi. He then claimed to the guys that Tsukushi was in love with him. They did not really believe him. Later, he asked them about Tsukushi meeting Rui at the emergency stairwell. Yuriko Asai and her friends then approached them, showing Tsukasa a video of Tsukushi practically confessing her feelings to Rui. Enraged, Tsukasa hit Yuriko when she tried to touch him. Akira then said "Tsukushi Makino's really something to take on the F4" and confirmed that he never thought she liked Tsukasa. He got a look in his eye, scaring both Akira and Sojiro. When Tsukasa went on a rampage, they tried to stop from harming a student. Akira realized "Nothing's gonna stop him now."
A few days later, Akira attended Shizuka's birthday party with his friends. Tsukushi later beat up a producer for harassing a young girl. Akira eventually held her back, saying "That's enough, Tsukushi. You'll kill him." After Shizuka made her announcement, Akira exclaimed "What a bombshell." The next day, a student dropped a coin in Tsukushi's drink and she downed the whole thing. Akira was incredibly grossed out about her drinking it. Nearby, they overheard some girls scheming about Rui. Akira said "They'll be lucky if he says hello." On the day of Shizuka's departure, he and Sojiro were unable to contact Rui. They tried calling him again at the airport to no avail. He showed up after Shizuka left and revealed to the others that he was going after her. Akira and Sojiro were surprised that Tsukushi had persuaded Rui since they thought she had a crush on him.
The following day, he and Sojiro caught Tsukasa reading a book about dating. They assumed he was going out with one of the models from Shizuka's party. Akira said "If you base your info on that nonsense, she'll just laugh at you" They then described their ideal dates with Akira's leaning more on the mature side. The two later heard that he went on an overnight date with Tsukushi and assumed that they had had sex. When they asked him about it, they were both impressed and surprised. Akira even apologized for "making fun of [him] all this time." Tsukushi coincidentally walked up. Akira and Sojiro then teased Tsukasa for being so "uptight" around her. The next day, Tsukushi ate lunch with the F4. She suddenly dropped her spoon, making a loud noise which irritated Akira.
Sojiro: "I'll admit I've slept with a lot of girls who had boyfriends. But I'd never do it to a friend! Never!"
Rui: "I feel bad about what I did to Tsukasa."
Akira: "If you feel bad about it, don't do it! If you can't have Shizuka, then Tsukushi will do? Is that it?"
Later, Tsukushi introduced Sakurako Sanjo to him, Sojiro, and Tsukasa. Akira invited her to sit next to him. The next day, Sakurako seemed very comfortable around them, despite claiming to be afraid of boys before.  Though Akira did not dote on her like Sojiro, he defended Sakurako when Tsukasa yelled at her. At some point, Akira slept with Sakurako even though he only liked older women. She had told him "You're the only one." He was later surprised to find out that she had also slept with Sojiro and said the same thing to him. The next day, Akira and Sojiro found that Tsukasa had strung up several students by their ankles from the roof. The two had no idea why he was doing that. Rui then opened the door of the roof and declared "I'm back." Though Surprised, the F4 greeted him warmly. They then decided to cut the rest of the day and hang out.
Sakurako's past came to light the next day. Akira did not remember her from back then. The same night, the F4 went to a night club. Commenting on Rui's change, Akira said "I wonder if something happened with Shizuka." The following day, the F4 went on a trip to Tsukasa's family's island. Akira brought his older married girlfriend along. That night, he made special cocktails for everyone, including one called "Between the Sheets." Tsukasa later woke up Akira and Sojiro, when Tsukushi disappeared from the room though she just went for a walk. The next morning, Kazuya, Sakurako and Thomas arrived while they were on the beach. Kazuya brought news of Shizuka's engagement. Akira asked "Are you okay with it?" to Rui and he replied "It's all over." The next day, everyone had to take Kazuya's boat home when Tsukasa left by himself on his jet.
Rift in the F4
"If you have Rui expelled, I'll quit school too. I've had enough of this! What happened to the F4?! Wasn't our bond stronger than anything?!"
—Akira is upset when Tsukasa tries to have Rui expelled[src]
After returning to Tokyo, Tsukasa informed Akira and Sojiro about Rui kissing Tsukushi. They confronted Rui about it at school. He admitted to feeling "bad" about it, to which Akira responded "If you feel bad about it, don't do it!" Tsukasa eventually declared "You're not one of us" to Rui. A few days later, Akira was surprised when Tsukasa brought Sakurako along to hang out. He and Sojiro eventually lost track of them and decided to head home on their own. Later at school, Tsukasa made an announcement that Kazuya was replacing Rui in the F4. Akira and Sojiro went along with it, though they were not exactly hyped. Tsukasa then announced that he wanted Tsukushi and Rui expelled from school. Akira and Sojiro tried to talk him out of it that night, but were unable to.
The next day, Tsukasa's sister Tsubaki Domyoji intercepted his attempt to blackmail the school's principal. Tsukushi then promised to leave the school to appease Tsukasa, followed by Rui. Akira also declared he would leave too, becoming emotional as he said "I've had enough of this!" Tsubaki interrupted everyone and told them to settle the matter with "sports." A three-on-three basketball match was decided upon. Together Akira and Sojiro agreed to win the match and "talk Tsukasa out of this idiocy later." The next day, the match was held at Eitoku to much fanfare. They played well against Rui, Tsukushi, and Kazuya until Tsukasa started acting erratically. Akira and Sojiro eventually realized that Rui was using Tsukasa's jealously against him. Akira tried to calm down Tsukasa, who then hit him.
With only ten seconds left, Tsukasa shocked everyone by declaring "I quit" and then walking off. Akira and Sojiro expressed their annoyance at Tsukasa's "selfish" behavior. Tsubaki pointed out that they still got the outcome they wanted, meaning Rui staying at Eitoku. Afterwards, they all went to the Domyojis' mansion to celebrate. At one point, Akira and Sojiro asked Rui "how far [he had] gone" with Tsukushi. They were surprised to learn that they had not had sex yet. Tsubaki then offered Rui and Tsukushi one of the guest rooms, which Akira and Sojiro locked them into. Later on, they were talking about Rui and Tsukushi when Tsukasa walked in the house. Akira noticed him first and tried to stop Sojiro from talking, before attempting to placate. Tsubaki instead was honest about what was happening. Tsukasa took the news well, leaving Akira and Sojiro shocked but pleased.
The next day, Akira and Sojiro spied on Tsukasa talking to Tsukushi. Afterwards, Akira told him "All that practice paid off." Later that day, Akira was impressed about Tsukasa making up his mind to get over Tsukushi. Tsukasa was evidently still irritated at Rui, who walked up seconds later. Once Tsukasa stormed away, Akira and Sojiro asked Rui about his night with Tsukushi. He revealed that nothing had happened since he felt he could not betray Tsukasa. The next day, Akira and the others learned that Tsukasa was going to New York. They became upset when he informed them he would live there for two years. That night, the F4 held a going-away party for their friend. Akira wondered why Tsukushi did not show up. Kazuya then revealed her recent money troubles. The next morning, Akira and the others saw off Tsukasa and Tsubaki at the airport.
Tsukasa returned to school only four days later. Akira and the others rushed to go see him. He told them "It was so boring, so I came back." Akira answered "How can you know that in four days?!" The F4 later decided to cut the rest of the day. They walked by Tsukushi at the gate. When Tsukasa said "Something smells here," Tsukushi blamed it on Akira, much to his indignation. Two days later, Akira saw Tsukushi's house on television which made the news due to Tsukasa fighting Seinosuke Amakusa. Akira said "I didn't think she was that poor." Tsukasa then announced he was entering Tsukushi in Teen of Japan in order to "make [her] look like she deserves [him]." Later at Tsukasa's house, Sojiro burst in and told the guys about Tsukushi's leading competitor. Akira asked "So what are you going to do?" to Tsukasa, who remained confident in Tsukushi.
On Christmas Eve, the F4 and Tsubaki attended Teen of Japan to support Tsukushi. Like the others, Akira was a bit dumbfounded by the outfit Tsukushi chose for the first round. Before the second round, Sojiro suggested to go give Tsukushi a "pep talk." Akira guessed that Sojiro only wanted to meet Ayano Kurimaki. Backstage, they all wished her good luck. During the second round, Akira initially called Tsukushi's English "first-lesson stuff." He was then impressed by her next sentence, saying "And I was counting on her monosyllabic strategy." When Tsukushi made it to the final round, Akira, Tsukasa, and Sojiro took up for her when the audience began badmouthing her. After the final round, Tsukushi lost but won a special prize. The F4 clapped for her and Akira told her "Good job. You really hung in there!"
Meeting Haruto and Oto
Akira: "He's got goals. He's going to fulfill his duty to his family so he can marry the girl he loves."
Sojiro: "To be honest, no one ever imagined Tsukasa would turn out like this."
Akira and Sojiro were at the airport to see off his sisters, whom were going to Switzerland for three weeks, when they ran into Haruto Kaguragi and Oto Edogawa. Sojiro introduced Haruto as "that high school guy I told you about," jogging Akira's memory. His sisters then clung to him and promised to call him several times a day, before finally leaving. Akira and Sojiro turned their attention to Oto, who introduced herself. The two offered to give Haruto and Oto a ride home. On the drive, Sojiro invited them to Akira's house. They showed them into the guest house and locked them inside, recalling the time they did the same thing to Tsukasa and Tsukushi. Several minutes later, they returned to let them out and then served tea. After saying goodbye, Akira told Sojiro "Looking at those two reminds me of the past.
As with the other F4 members, Akira was a good-looking, young man. His hair was naturally wavy. He began growing it out in middle school until it was about shoulder-length. He often wore it in a ponytail. In his third year, Akira opt to have it straighten and parted in the center.
Personality and traits
Akira was essentially the glue that held his friends together. As a mediator, he stopped fights between the others and tried his best to bring about a resolution. Akira was regarded as the mature one among his friends. He disliked younger women, whom he usually thought of as childish like his ultra-feminine mother. Therefore, Akira was attracted to older women and dated them almost exclusively. His relationships typically had short lifespans, though not as short as Sojiro's.
He was also good at sports, particularly basketball. Akira, Sojiro, and Tsukasa were scouted in junior high, but stopped playing because "it is [not] cool to sweat."
He is played by Koichi Hashizume in his film debut Hana Yori Dango (1995). Hashizume's career was cut short when he died in July 1999. Akira and Sojiro are not seen apart during the entirety of the film. They aide Tsukasa in bullying Tsukushi. The two tease first Tsukasa about Tsukushi's similarities to his sister and later when they start dating. Akira is not shown to have a preference for older women in this version.
In Meteor Garden (2001), a version of Akira, named Mei Zuo, is portrayed by Vanness Wu. Mei Zuo is a loyal friend and supports Dao Ming Si's (Tsukasa) relationship with Shan Cai (Tsukushi). Unlike in the manga, Mei Zuo is sporty, playful, and does not have a preference for older women. An episode of Meteor Rain (2001) focuses on Mei Zuo's budding romance with a Japanese girl, named Aisa.
Tsuyoshi Abe portrays Akira in Hana Yori Dango (2005), Hana Yori Dango Returns, and Hana Yori Dango Final (2008). Like in the manga, Akira helps keep his friends together, leading them to sometimes call him "nosy." He also dates older women and never allows his relationships to get serious. Unlike in the manga, Akira's father is a member of the Japanese yakuza. After graduating high school, Akira is integrated into the family business and appears to be the head of it by Final.