Alternative Name:About him that I know.; ぼくは知っている。

Genre(s): School LifeDrama

Demographic:N/A

Summary:
High school student, Sunao, was commuting to school when he noticed a salaryman on the bus. On his ring finger, were teeth marks hidden by a ring. Who... MORE High school student, Sunao, was commuting to school when he noticed a salaryman on the bus. On his ring finger, were teeth marks hidden by a ring. Who left those marks? Is it a sign of possession? Or maybe... HIDE