Does Jk Also Want to Save the World?

Saotome Eri is an ordinary girl, but she suddenly travels back to the Heian era thousands of years ago every night and works as a waitress in a family named Ubuyashiki. In an accident, the eldest young master recognized that he was not from the Ubuyashiki family. When she was about to be killed, she shouted out in desperation, "I am a doctor!" "I can save you!" Because of this little lie, she had to travel between day and night. "Well... Your weakness may be due to lack of vitamins. You should take all these vitamins first." Vitamins don't work. "Well... Your weakness may be due to lack of exercise. I suggest you exercise for two hours every day." I was beaten, but the opponent still ran away, but it didn't work. "Well... Your body is weak and you may need strong medicine. From today on, you can stew a stick of ginseng every day." The other party was vomiting blood while drinking the medicine. Seeing that the other doctor killed another doctor angrily and was about to attack her, Eri begged for mercy. "I'll go online and sway people for you." An unknown young scientist sent her suitable medicine, and the young master's health really improved. After that, she finally got rid of the nightmare. But what Eri doesn't know is that because of her actions, there are more thousand-year-old ghost kings in the world who are no longer afraid of the sun. Maybe she knows and doesn't care, because she is now entangled with the Cursed King a thousand years later. Saotome Eri cried and ran to the two bamboo horses: "Satoru, Jie, help! There is an ugly monster!" Reading guide: 1. Demon Slayer 40% + Curse Recovery 40% + Ming Ke 5% + Wen Ye 5%; 2. Heartthrob + group favorite, Eri Su Su Su is beautiful. Concept: Butterfly Effect