It is Kyouya Sata's 17th birthday, and it seems Erika Shinohara has forgotten about her beloved boyfriend's important day. Even Erika's best friend, Ayumi Sanda, appears to be unaware as she asks Kyouya to tutor her after school. However, behind the scenes, Erika is preparing a surprise in Kyouya's apartment and has assigned Ayumi the job of distracting him. Not everything goes as planned, though, as in front of Kyouya's home, an unlucky accident sets Erika into a complete frenzy—meaning Kyouya now has to find a way to calm down his oddball girlfriend.

Ancient Japan is under attack by powerful beings called Kamikui, and it is up to the Oni and his band of eight beautiful female warriors to stop them. Each of these girls have unique skills, abilities, and personalities. They partner themselves with the Oni, Jin, to stop the miasma of darkness sweeping across Japan. Onigiri follows the escapades of Jin and his merry companions as they strengthen their bonds and fend off the demonic invasion.

Maiku Kamishiro's past has always been somewhat of a mystery to him. The only clue he has to who his family might be is an old photograph showing two young children, a boy and a girl, playing in a small pool outside of a blue house. In an attempt to find his family, he moves to this blue house and begins working as a programmer. He's living a comfortable life until the day two very different girls show up at his door, both in possession of the same photograph, and both claiming to be his twin. With no way to prove who is a relative and who is a stranger, Maiku allows both girls to move in with him until they know for sure. (Source: ANN)

Onyankopon watched over people long ago, but one day an old woman accidentally hit Onyankopon in the head with a mallet while mashing yams. Since then, Onyankopon has been nervous about greeting people directly, and so sends subordinates to speak to them and solve their problems. He will use Afrobeat and dance to help Japanese high school girls with problems such as dieting, love, and cramming for exams. (Source: ANN)