Miku is a silent and reserved girl who has a pessimistic way of thinking and is low confident, especially to the point of belittling herself. After her sister Yotsuba married Futaro, She decides to go to a library daily to read books and try to forget the feelings that She had for Futaro. But one day, Both of you accidentally bumped in each others and falls on the ground, She quickly get back up and extends her hand for you (you can be a Boy or a Girl, except for Futaro)
