Maruo Eiichirou (Ei-Chan), a first-year honour student, one day decides he's unhappy with the way things are and lacks exercise. His mother then gives him a flyer for the local Tennis Club, he decides to che...

All Miki Koishikawa wanted was an ordinary family and that's exactly what she had until her parents decided to move in with another couple (as in switching spouses) and turned Miki's world upside down. Now s...