WARNING: This page may contain spoilers or solutions to puzzles. Read further at your own risk!
Mika is usually displayed as a middle school girl with big dark-colored eyes and brown hair that falls just above her shoulders. She usually wears a school uniform in the games. In the novel, she wears a pink tank top (magenta in the 2nd). She wears a white coat with pink sleeves, hood, and pockets(its white fluffyish in and completely pink in the 2nd) which she usually carries a small pink plush kitty in one of the pockets. She wears jean shorts and long black stockings and small brown heeled boots. Her hair is no longer down, for it is now longer then her original style in the game and is now in a high ponytail. Her bust is a bit bigger then Anna's despite her young age (currently unknown along with the other students).
Mika is the only female character present in the games (Anna has only appeared in the novels and the film). In most versions, Mika is usually found in the kid's bedroom where she stays for most of the game. She is commonly accepted as Takuro's girlfriend. In subsequent versions, however, Mika will usually mention him and refuse to leave without him. Mika only cares for Takuro's safety for she loves him alot. It is theorized by some that she does not like Hiroshi, even though he's her friend. She may also be hinted to be a bit stubborn around others but Takuro.
NOTE: This section may include spoilers to the game, movie and novel. Mika is a non-playable character and one of the main protagonists, who has almost no role in the game other than being the first to be killed by the Oni in Version 6.
In Version 1, Mika is named Megumi, and seems to be Takuro's girlfriend as well as a member of his gang. In the second floor bedroom Hiroshi first finds her in, she has set up a dresser barricade. This is what helps her survive to the end.
In Version 3, Mika is first found in the second floor bedroom. Later she is found with Takuro and Takeshi in one of the rooms of the basement, they all soon flee after the Oni enters the room. Mika is found again with Takeshi in a dungeon and will not come out until Hiroshi finds an exit. Once Hiroshi finds the rope ladder deep inside a cave, both of them then accompany him. Afterward, they see the Oni eating the ladder. Hiroshi and Mika flee, while Takeshi trips and is killed. Mika is found again being pounded and killed by the Squatto Oni in a room in the mansion.
In Version 5, Mika is found in the kid's bedroom hiding behind a bed. She will refuse to leave the mansion without Takuro. Mika does not leave this location for the remainder of the game, although Hiroshi can return at the end of the game to rescue her. She is not shown in the epilogue and is not mentioned again.
In Version 6, Mika is the first to die. She dies right as Hiroshi is about to enter the basement. There is a scream from upstairs and as Hiroshi enters the room Mika was in, he sees the Oni supposedly eating her. Later on, Hiroshi will encounter Mika in the basement for a few seconds. She then morphs into Mika Oni and chases Hiroshi around.
Mika is a girl who harbors good will toward Takuro. Her mind is strong and though she acts out rashly. Mika does however have a rather lonely side to her, but is far from becoming domesticated. Mika is also surprisingly quick on her feet. For the 2nd in the bonus manga at the begining(this had no affect to the real story), Mika refuses to go with Hiroshi and is then chased by the oni. Her leg breaks and she cant run away from the oni. Se either sees or hallucinates Takuro being there ignoring her or looking for her. Tears in her eyes, she accepts the fact that she is dead and with a smile, she admitted in her "final" moments that she'd die for Takuro, and then gets "killed".
Mika makes an appearance in the live action movie, Ao Oni. She is portrayed by Seika Furuhata.
Mika is seen waiting for her boyfriend Takuro outside the jailhouse with Takeshi and when Takuro and the others arrive they all enter the building, upon entering Mika follows Takuro down to the Annex and stays with him for a short time before leaving to find the others. Mika spots Anna whom is questioned by her presence but Hiroshi calms her down and welcomes Anna to their group, Mika then grows angry with Takeshi of why he won't leave the closet when Takeshi is killed she vomits at the sight of the remains and goes to warn Takuro who shruggs it off and laughs. Mika then seduces Takuro and steal the keys and tries to exit the jailhouse herself, she finds it won't open and she tries to hide hence the growls that are being heard she then starts to cry hoping the Oni doesn't catch her but when she looks up the Oni's face is seen smiling before attacking and brutally murdering her. After a chase Anna and Shun plus Hiroshi soon discover Mika's mutilated body and they are grief-stricken by the sight.
- While being chased in Versions 3, 5, and 6, the player can bring the Oni into the kid's bedroom Mika is hiding in.
- In Versions 3 and 5, this results in an immediate game over as Hiroshi will automatically go in front of Mika in an attempt to protect her from the Oni and be killed.
- In Version 6, however, the player maintains control of Hiroshi. The chase ends as you leave the bedroom, going back into that room shows that Mika has been killed. The Oni also vanishes from the bedroom without going out the only exit. This will not prompt the scream as you enter the basement and the Oni will not be seen eating Mika.
- Mika's in-game sprite is modeled after the "002-Fighter02" default sprite in RPG Maker XP.
- Mika's novel appearance may be similar to the average anime jock's girlfriend(even though its unknown if Takuro and Mika are dating in the novel).
- The game never makes it clear if Mika's hair is long or short, for fans always change her hair style. But in the novel, her hair is longer then her sprites.
- Mika was the first female character in the Ao Oni series. Anna being the 2nd.
- Despite Mika's blue outfit, and in the novel her pink, her shirt is going to be Orange and her skirt is a quilt color.