This highly anticipated follow-up to Onegai Teacher stars Maiku Kamishiro, an orphan whose only link to his childhood is a picture of his old house, himself, and his twin sister.

In an attempt to discover more about his past, Maiku moves into his childhood home. Soon after, two girls suddenly enter into Maiku's single life. One of them is his twin sister, and the other is a perfect stranger. The problem is he doesn't know which one's which!

From here begins a tangled give-and-take relationship between Maiku and the blue-eyed girls, as they attempt to understand each other and their place in the new life that is opening up to them. Find out the identity of Maiku's real blood relative and experience a brand new comical and heartfelt ride in the Onegai universe.