As a Salty Fish, I Teach the Protagonist from a Comprehensive Comic

Yiwen, a salty fish who was idle at home, unexpectedly traveled to the world of the strongest disciple in history. He relied on the system to guide the protagonist to become stronger, and started his journey as a salty fish. Traveling in different worlds, guiding the protagonists who were bullied in the early stages and had a tragic fate. Taught Tanjiro how to use the Breath of the Sun in Demon Slayer: Kimetsu no Yaiba, solved the short-lived fate of the Qiao family in JOJO, taught Asta Six Styles and Eight Gate Dungeon in Black Five Leaves*, and so on. More worlds may appear later. This book does not include a harem, it may have a single heroine or no heroine This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.