COS Wearcat Leads the Way

Pitfalls (reminder before reading, the protagonist COS will try his best to be reasonable when traveling through time. The question is that the world consciousness is reasonable, the protagonist has no cp, and the author strives to be non-ooc) be The world has the main attacker Grinding with Lonely Claws, the lonely Oni Tan who can't talk to Demon Slayer, the string genius Minato who doesn't like to make friends, the diamond ace Eijun who has a mysophobia, Ryuichi who is a school dad who has no younger brother, Kuroko who plays basketball and loves to laugh, Shirasawa who plays cold and has no desire for ghost lights, Tsunayoshi Sawada who is a tutor and loves to be in a daze, and Gon who is a full-time hunter and a hunter. There are nine worlds in total. Once it ends, it is over and there will be no extra chapters or new worlds. Probably because I won't write a particularly long one, right... I'll die just thinking about the two hundred or so chapters, not torturing the readers, but torturing myself...