He is a Beast
Ongoing | 蘑菇,尤匠子 | 2019 released
Childhood friends but she forgot about him. He's not the one killing the cats, he used the photos to bait her to call the cops on him and make a deal with her for defamation - she has to act like his dog/pet. That aside, this is so bad. It touches on heavy subjects like child abuse, neglect and starvation but in such a goofy way idk if it's intended to be a parody or what. And the cliché bullying from literally everyone that the guy has to save the protagonist from... The whole thing is beyond childish.
Ibara no Naka no Hana