
Well, it's uncomfortable because how it depicted the SA and tried to pass it lightly. BUT, here's this:
1. The artstyle is not sober enough, it's still quite colorful and it makes it seem less serious.
2. The discomfort is real, the MC isn't happy and the small gestures signal it. The artist actually make good use of symbolic elements to show how painful it was what his brothers did to him.
3. The MC is promiscuous and a past life tyrant. His psychology about life may be twisted or he can't give enough importance (if it's not related to the ML) since he has seen his share of bloodshed. He doesn't hold his body to the same value as others since he uses it as a means to an end.
4. Although these SA scenes are uncomfortable and seem unnecessary, it's how he does it. Sometimes, we have to accept that's the character's methods, not some witty white lotus act or green tea machinations, or direct use of the ML abilities. Besides, if the depiction was even more serious, we have to acknowledge that the world setting is quite liberal regarding sex and that such strategy can exist and islts precisely used by the MC. If this was a novel, I'm sure it would have sounded more angsty, but the manhua has more of these comedic relief and wants to focus how the MC solely wants the ML's love more than his care for the world.

When I first found the story, the first comment I saw was the ML being a fuc boy
Like, who told you Woojin was the ML? Or just bad reading comprehension cuz the next comment was about Seungtae being a jerk for seducing MC and MC's crush. It just left me ?????? Seungtae didn't know Woojin was the alleged crush, he even thought Seungha he saw at Jaehyun's class was the crush.
Anyway, the story was actually enjoyable, to whoever complained about them acting like teenagers, do know they act like actual college student wdym. It's a healthy relationship, they make it work, Jaehyun learns a thing or two and Seungtae... idk he was pretty ok (maybe I've been reading too many toxic ML's).
The girls were cute, I actually like Woon myung, Woojin needs to get a grip and Seungha is just dislike (why did he treat MC like that, on what basis wtf).
Not reading the side stories, Woojin is not un redeemable (so far on the main story) but Seungha as a person and first impression is just... not the type of person I would deal with. Him and Woojin weren't an official couple as far as I knew but he acted like a prick for jealousy. Sort your own relationship before coming onto innocent bystanders. This pair's ups and downs... I don't wanna read.
When you wake up refreshed, you are late, seriously late lol