Demon Slayer: Miss Ghost King from Modern Times

(The fusion world of Spell Return and Demon Slayer, eldest heroine, two heroines, box lunch, anti-war, sisters with no miserable living father, sister with a decent style who is not brainless, a sister with a dark style who is crazy and yandere, and a hateful sea, sister CP is righteous and brave, sister CP guess for yourself.) "Sister, I'm here to accompany you." When Qin Yeyue, the ghost king in the 21st century, pressed the detonation button, gave up all means, and was wiped out in the big explosion. She did not expect that she would come to the Taisho era, nor did she expect that her sister would be reborn with her. A drop of blood connects a hundred years and connects the boundary between life and death. Butterfly Ninja: Qin Yeyue, you bastard! Qianye Liyue: Thanks for the compliment. I am indeed quite a jerk. My dear little butterfly. (Chiba Liyue and Butterfly Ninja are similar to Ryo and Manho, but not exactly the same.)