Torikago GakkyuuШкола как клетка; ปมปริศนา ม.4 ห้องกรงนก; 鳥籠学級; 鳥籠學級; 鸟笼学级; A Bird Cage Classroom; Birdcage Class; The Birdcage Schoolroom

From Intercross: Mikage is a transfer student who lost of all his memories. At the new class, what awaited him isn't dreams, friendship, or hope, but his teacher's "commands"... This is a forbidden school story that cannot be found anywhere else!!