[Anime Crossover] The Little Mushroom Who Became an Onmyoji

Sakurai Ryo accidentally broke through the world's barrier in Hachigen and transmigrated to another world. To gather enough energy to go home, Sakurai Ryo completed one mission after another and saved the world along the way. A world of Quirks: Why is this meek little mushroom so tough? Oh my god! Their Quirk is summoning? That's way too powerful! Sakurai Ryo (apologizing guiltily out of habit): I'm sorry, I'm sorry, but crime is wrong! Also, I'm an onmyoji, not a hero. This isn't my Quirk, got it? (The Great Tengu behind him threatens them with murderous intent.) A defeated criminal (trembling): G-Got it! A world with chakra: Why is this meek little mushroom so tough? Oh my god! They have so many summoning beasts? That's way too powerful! Sakurai Ryo (apologizing guiltily out of habit): I'm sorry, I'm sorry, but destroying the world is wrong! Also, I'm an onmyoji, not a ninja. This isn't summoning jutsu, got it? (Behind him, Tamamo-no-Mae threatens them with her nine tails dancing wildly.) A stopped rogue ninja (trembling): G-Got it! A world with Devil Fruits... Sakurai Ryo fought his way through one world after another. Thanks to his peaceful persuasion, the worlds were all tranquil. At last, with his energy gauge full, he returned to his own world. He even made it back in time for the Winter Cup, and was overjoyed. A certain dark-skinned man, who had been chasing Sakurai Ryo the whole way, punched down one criminal, one rogue ninja, and one... (arrogantly): Tell me, have you seen an incredibly cute and charming little mushroom?