Does the Cannon Fodder Have to Be Everyone's Favorite?

The protagonist is a cannon-fodder character, but he's fairly good-looking, and he's enjoyed plenty of perks thanks to his face ever since he was a child.

He thought he might be able to make something of college too, but unfortunately, his roommates are all exceptionally attractive and well-connected. They're famous around campus, making him seem even more like an utterly unremarkable cannon-fodder character.

Roommate 1 comes from a prestigious family and has outstanding looks and bearing. Every move he makes is elegant, and everyone was already smitten with him and singing his praises before he even enrolled.

Roommate 2...

Roommate 3...

Then he overhears his roommates talking behind his back, calling him poor and vulgar, saying he's just like a weed in a field.

He knows none of them like him. Then one of his roommates has a birthday, and they invite him to the party.

He gets drunk, and when he wakes up, his body is covered in suggestive marks. But the only people at the get-together were his three roommates.

To find out who did it, he decides to try the following methods:

... (Haven't decided on the specifics yet.)

Notes:

1. The protagonist is irresistible to everyone.

2. More to come once I've figured it out.

Screenshot taken.

Theme: There is always someone who can deal with a bad person