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the Alpha is adamant about being poly, and wants to date his beta bodyguard and the blonde Omega dude because he is head over heels for the bith of them since forever. But the Omega guy doesnt like that and thought he could convince him to date only him, which didnt work. So the Omega guy came up with the world's most messed up plan to try to make the Alpha sick of dating people other than him, by saying he'd only continue seeing him if the Alpha dude would let random people that the Omega guy found fuck the Alpha guy in the ass, cause he needs experience or something. The Alpha dude did it because he wants to be with the Omega guy.
Omega guy was angry his plan didn't work, so this time he hired some dudes to brutally gang r@pe the Alpha when he meets them, expecting the Alpha to finally break it off with his bodyguard if he had a bad experience with multiple people. The Omega watched the whole time, and said he'd stop them is he gave up on the Beta Bodyguard, but he refused because he said he loved both of them, so the Omega dude let the guys continue to SA him, until the bodyguard found out where the Omega dude took him, and beat up those guys.

Wow this is so fuckass I studied for 3 hours to forget about this shit, actual shit oh my god I've never hated any manhwa this much