Anime Crossover: Sovereign of the Universe

Fantasy with a touch of sci-fi. Male protagonist, one female lead. Read with caution. If it's not to your taste, please don't flame the author. There may be parts you don't like, so please understand. The power levels may get out of hand later on, and there may be some questionable parts. Caution, caution, caution. If it's not to your taste, please don't flame the author, please don't flame the author, please don't flame the author! Important things are said three times.

This is the author's first novel, so please be understanding. It mainly tells the story of a 17-year-old boy and his companions, who are reborn and overcome all kinds of difficulties before reaching the pinnacle.