Chainsaw Man: He Was Forcefully Kissed by Himeno-Senpai at the Beginning!

[Ding, the demon hunting system has successfully awakened! Yusheng, who had just traveled through time, experienced an unprecedented experience before he had time to express his emotions... [Congratulations to the host for receiving the reward: a 100% thousand-year killing stick! (Let the cute demons experience unprecedented pain! "What the hell, a broken stick?!" Black Sword Shusui, Breath of the Sun, Gojo Satoru's eyes, Sekiro's complete swordsmanship secret book, twelve talismans, Sharingan, and all kinds of weird rewards are endless. As long as you kill the demon, you will get the reward. "I really regret joining the fourth class of anti-monster specialties. Can all of you sitting here come up with a brain!" "Dianji, if you are too embarrassed to look at others, you are the worst offender!" When a normal person encounters the pathological chainsaw man, what kind of sparks will be generated... Answer, he will also become abnormal: Don't stop me, let me chop this idiot to death with a knife! ! ! " (The introduction is too weak, please move to the main text)