15 no Yoru is an irregularly serialized anthology manga that deals with societal issues such as neglect of children and the elderly, drug addiction, school bullying, extreme reclusiveness, HIV/AIDS 1.**The Cry of a Nameless Boy**, deals with neglect of children 2.**DIFFUSE**, deals with addiction 3.**You who are being bullied**, deals with school bullying 4.**REBIRTH**, sequel to DIFFUSE 5.**Cocoon**, deals with social withdrawal 6.**AIDS**, deals with HIV related issues