Asuka is a typical high-school girl with two big loves in her life: Judo, and Kujyo-senpai. One day, Asuka finally gathers up her nerve to... more>> confess her feelings to Kujyo-senpai. But before she can do so, a boy from her past transfers to her school and challenges Asuka to a judo match--if he wins, Asuka will have to be his girlfriend for three months. Who is this boy? Will Asuka ever get a chance to confess to Kujyo-senpai? Who will win this match? <<less

After Daa! Daa! Daa!, Ruu is now a cheerful youth living in his home, Planet Otto. Then, a confused girl named Miu arrives through a... more>> wormhole from Earth. Ruu joins up with her and promises to take her home. Unknown to Ruu, Miu is the daughter of the same people who took good care of him in his stay on Earth. <<less

Misaki Sakurako is a thirteen-year-old girl who loves ice cream and cherry blossoms. Living alone, she had a weird dream that told her she is... more>> the only savior to three young child boys... Strangely enough, she woke up to three handsome strangers who asked her to resolve their dear curse--their bodies will transform if they see any slightly "perverted" materials (posters, pictures, etc.). The only way to prevent them from transforming would be...? <<less

Miyu Kouzuki is an 8th-grade student whose parents leave for the United States to work for NASA and arrange for her to stay with their long-time family friend, Hōsho Saionji, a monk who lives in an old temple on a hill overlooking the town of Heiomachi. However, Hōshō leaves soon after on a year-long pilgrimage to India, leaving Miyu to stay in the same house with his son, Kanata.... more>>

Suddenly, a UFO lands in the honden of the temple. Inside is a humanoid alien baby, Ruu, and his cat-like "sitter pet", Wannyā. They arrived on Earth from their home planet, Otto, when they fall into an interplanetary wormhole (a time warp which can transport objects across several regions, planets and time planes). They cannot return to their home planet because it is too far from Earth; Wannyā asks Kanata and Miyu to allow them to stay in their house, and they agree. Miyu and Kanata learn from Wannyā that people from Planet Otto look identical to human beings, and that Wannyā can also transform into human beings, animals and objects. <<less