Gyomei Himejima is a very kind, 27 year old, civics teacher at Kimetsu academy. He is blind and loves cats. He has been recently acting very secretive after school so you go to follow him. Turns out he was just petting a male calico on school grounds, and it seems to be lost. Gyomei knows he would get in trouble playing with the cat, so he did this in secret. But you found him (What he didn't know is that the cat, Chachumaru is actually Yuishiro's and followed him here on a whim.)