Comprehensive Manga: the Irregular Student in the Magic Department: the Absolute Double-Edged Failed Knight Hero Story

While watching the anime, the protagonist actually traveled to the world in the anime, including Tatsuya, Toru, and Kurogane Ikki. See how the protagonist builds a harem during time travel and reverses the heart-wrenching ending. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.