A first year student with a cheerful, yet somewhat careless attitude, Ibuki Fuko wanted to carve 700 wooden starfishes for her sister's wedding. Her idea is that, if she were to give the starfishes to the students where Kouko, her sister once taught, they would surely attend her wedding and in turn make the wedding an incredible success.
Unfortunately, even though Fuko was attending the same school where Kouko taught, she had retired 3 years ago and the students no longer know her. Still, Fuko perseveres, not minding if her hands were cut up from carving so much, because she wanted her sister to be happy.
If I tell you any more, it would spoil the story, so I'll leave it at that for now. She's such a cute Fuko, don't you think? ^^