He was known as END. The greatest demon weapon ever created. A soulless abomination that obeyed his master's every command until he inexplicably vanished. Four hundred years of death and war reigned in his absence until he was found again by the other side. By the only person who would see beyond the shell, to the heart of the Golem. NALU

Lucy Heartfilia is moving into her new apartment to live alone for the first time. She's ready to live her independent life, but why is there a pink-haired boy claiming that it's his apartment, too?