Came over to Tokyo by a school excursion from Nagano. The Aya which takes the action according to the detached room one from the Nobu of classmate enjoying Tokyo Tours at time and the boyfriend to invite to Hotel of the free action. She had a purpose in Tokyo. The Koto which meets the brother-in-law who it is a divorce of parents, and was unlike a detached room. Liked Nobu, but a meeting wanted to check one's feeling that thought about a brother-in-law by all means. She goes to the cause of the brother-in-law. Of the trip that it is sad without knowing that begin….