Gintama: Flame Dance

The protagonist, Lin Yan, was originally an ordinary modern young man who traveled to the world of "Gintama" due to an accident. In the confusion and chaos, he unexpectedly awakened the power of "Tsikuni Enichi" from "Demon Slayer: Kimetsu no Yaiba" - mastering all the thirteen types of Sun Breathing, spots, transparent world, Hedou and other abilities. He did not choose to become a samurai or join the Shinsengumi, but with this powerful but aloof power, he walked into the dilapidated hut with the wooden sign "Everything House" and officially became the "fourth member" of Sakata Gintoki, Shimura Shinpachi and Kagura.