I'm the Original Cast Member in Demon Slayer: Kimetsu No Yaiba

[Unlimited streaming + no heroine + serious novel] I am the original batch! The fox asked: "Do you know me?" "I want to whip you every day!" Sen replied decisively. After waking up, Yae Kamiko actually appeared in my room, brought me to the world of Demon Slayer: Kimetsu no Yaiba, and threw a system to me. I used this system to integrate the God's Eye of the Genshin Impact character, making it an out-and-out original. In the world of demon annihilation, I became an evil ghost, but my heart is still human. When I encountered danger, I clutched the Eye of God in my hand and shouted, "I am the original batch!" The evil spirits dispersed. A young boy became a legend as a lone wolf in a world filled with evil spirits.