きみが死ぬまで恋をしたい

An orphanage known only as "the school" raises orphaned girls as living weapons for an endless war. Sheena Totsuki, unable to accept the life she's been given, meets her new roommate Mimi Kagari, blood-soaked and rumored to be the school's ultimate weapon, the one who supposedly cannot die. Mimi's easy smile and casual attitude toward the battlefield unsettle Sheena at first, but the two grow inseparable as Sheena starts to see the person behind the rumors.