I Rely on Death to Reverse the Situation and Destroy Ghosts for Two Thousand Years.

[Demon Slayer + Heartthrob + Death Rewind + Substitutable + Cool + Slightly Black Mud] You are an ordinary but very lucky passerby. Although you are a junior sister of Shuihu, your strength... Past... And even the reason for joining the Demon Slayer Corps are very lackluster. Fortunately, you are very lucky. It seems that as long as you experience the mission, the survival rate is very high. Regardless of whether there is a "Pillar" present or not, regardless of whether the opponent is a "Twelve Ghost Moon", in the end everyone can successfully defeat the enemy. "What other reasons could there be? Of course it's because I'm cheating! Death rollback is simply a must-have at home and the best assistant to save your teammates!" That's right, you won't die. But, right, just because you don't die, you can't be beaten one, two, three, right? This is wrong, my God! Your golden finger was frightened and failed. On your deathbed, you could only make one wish that would split your life in half. "It would be nice to live in a world without ghosts." You wake up. When you open your eyes, your wishes come true and true love comes. The operation was very successful. My head is on my side, my hands are on my legs, I can feed myself, and my future is very bright. Wait, where did this come from? Why is it Heian Jing! Is the sick and dying young man from my employer's house the future ghost king? It looks a bit similar, but this guy is definitely not a kind person. If you show your hands, you will have no choice but to kill ghosts for two thousand years. *The Heian-kyo period in Japan is about 1,200 years ago. One thousand years sounds too unreasonable, so just round it to two thousand years. *The third person of the text, a little bit of black mud, is originally from Otome. Since I can't write the second person, I can substitute