Demon Slayer: Kimetsu No Yaiba Begins Cthulhu

On the day when the ** star returns to its throne, the old ruler returns, the blood moon rises in the sky, and gray fog begins to cover this land. Conversation between two people, "What is the end of this fog?" "... Another fog." But—— "I wish you can reunite with the important person one day..." With this purpose in mind, one of them walked into the fog... Ps: Pillar destruction → Red killing → Sin →? The heroine Guiwu Shi of Zhu Dejuan... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.