Whose Killer Is Lost?

Everyone who has passed their eighteenth birthday will have a clock pattern on their wrist, and they will be led into a mysterious world-the sub-world by the pattern. But for the unlucky He Qi, the pattern that appeared was incompatible with everyone else's. For his lovely sisters, He Qi became a little trash killer ranked 23597 in the sub-world killer organization. Just after he completed a task, the sub-world system finally revealed its hateful intentions! [New mission: Kill S-level dungeon NPC Xiyuji, cannot refuse] [New mission: get close to Rong Yu, the climber, cannot refuse] Meow meow meow? "Dah!" [Commission withdrawal ratio 1:1] … (The author makes a mistake: the protagonist... Hey, he is mentally retarded. Hey, the author! The ultimate slow-burn (ㅇㅅㅇ❀))