Takashi, who has been living a reclusive life, wakes up one morning to find himself transported to a dungeon overrun with monsters. In front of him is breakfast, which his mother had probably prepared for him, and a letter from her. The letter contains only one sentence. Takashi's adventure begins. (Source: Kurage Bunch, translated)

A battle-manga that details the story of an undying girl, Suzukawa Mikuri, and her fights with "irregulars", humans with special abilities.