Dolls Fall

is a Japanese horror manga series written by Makoto Kedouin and illustration by Amido Sanshoku. It was serialized in the Monthly Dragon Age from Jun 7, 2013 to Jun 9, 2015.

Plot
Dolls Fall revolves around the lives of students at Jiaiin girls dormitory, an orphanage for middle school children without families. They are greeted with open arms by the matrons and other students, taught to accept their fellow orphans as sisters and the matrons as their mothers. Jiaiin is a safe haven for students, provided that they follow two simple rules: at night, lock your door and don't leave the room, and never enter a matron's room.

Official

 * FumiShobo