The Younger Sister Marie which continues keeping the relations that it may be said with both the Brother and the lover as a man of the first love without only one mistake with the older brother of the Giri being forgotten. On such one day, a brother-in-law starts for his new post accidentally in a school of the Marie. Relations of the Kindan which it is like that, and nobody knows. "A chest gets hard when I think of an older brother"…. Because be Daisuki…For an older brother, can endure even Nan?…. 」
