Eau douce eau salée

The summer of 2010, like many other years. I stay with my parents in Tsukishima on the banks of a river that joins Tokyo Bay. An uneventful ritual visit except that I decided to go and see and hear my brother for the first time since he locked himself up in the darkness of his room, too small for his size. Will I meet a drunken monster who only shouts grotesque words at his sisteras I had imagined him to be for so long?