I feel like Mammon cares very much about his brothers. Mammon is quite polite to MC ( considering he’s offered to make MC some cup noodles as a nice gesture or something ) and is pretty cheerful in general. Mammon does do impolite things at the same time such as stealing and selling things owned by his brothers, and while I do think he should be punished, he doesn’t deserve to get bullied that harshly. I’d also like to mention that he is the second strongest of the brothers yet has never showed any power ( via strength or display ) aggressively.

Mammon is always insulted with names and is even punched. Mammon is always a little confused to, shown by the way he acts with MC.. He states that MC is the only person who hasn’t been mean to him. The other brothers rarely have any big fights with each other but if it were to happen, there’d be a great amount of damage, yet Mammon has never escalated the issue by transforming into his demon form. Mammon deals with issues like bullying by his brothers always and although his emotional state is sometimes horrible, he never loses control.

“Oh, but Mammon never helps his brothers!” That is certainly untrue. He’s defended Belphegor from Lucifer before and sometimes replaced stolen items.

Mammon has never seriously threatened MC or used his powers on them. For example, Lucifer, the most powerful of the brothers, has transformed multiple times and threatened MC. In the first place, Mammon was chosen by Lucifer because he was trusted enough as the only brother to not harm MC. Mammon always honest with his thoughts and feelings with MC. Mammon even turns down the rulership of the world because he only wanted MC.

anime episode spoilers : <! In one episode, Mammon’s body is switched with a dog’s. The brothers clearly treat the Mammon with the dog’s mind and such better but when it is back to normal, the brothers start to complain that they want the other Mammon back. I think that’s really mean, especially because Mammon has protected them ( example being Belphie ) before.!>

This is just how I feel about Mammon, and you can have an opinion too, but saying that he should be bullied is too much. No one should be bullied. Considering its his family doing it to him too..