Shutup!'s Favorite

reread all those chapters from ch 1.

Seoin & Yeongwoon met when they were 16. Earlier chapter said they were 3rd year of middle school, but when they ate BBQ with Taegu Hyung, they told him 1st year of high school.

When they both 16, seoin told yeongwoon he liked someone, and the one he liked was a guy, so he asked yeongwoon to do some stuff with him like kissing and jerking off. See ch 16 seoin asked yeongwoon to sit on top of his lap & ch 20 seoin told yeongwoon he liked a guy.

From earlier chapter, if we see family photo in seoin room ch 6 & the one who seoin kissed in class room, was Jaewon (seoin step brother non blood related), ch 2.
Yeongwoon who saw them kissing, likely misunderstood seoin and thought the one seoin liked was his step brother. Seoin mole is on left, jaewon is the right. See ch 2
Also on flashback ch 19, seoin was looking outside the window at school and there's a blond kid (assuming it was jaewon), and yeongwoon saw that.

From the memory / flashback of the girl doctor who visited seoin, she remembered yeongwoon as seoin old friend from middle school, and the flash back was there's 3 kids sitting on the sofa playing video game, so it was likely seoin, yeongwoon and jaewon. See ch 10

Seoin & his mom were leaving abroad for 3 months, and seoin was waiting for yeongwoon to see him off, his mom said yeongwoon might not coming and they needed to get going. So it's seem, mom also knew yeongwoon was seoin friend. See ch 17.
From latest chapter, the 31, we see flashback that yeongwoon got beaten up by people and jaewon came late and said he just sent off his brother at the airport. So the reason yeongwoon didn't come is because he was being bullied.
I think the bullying has been going for some time, because before seoin left for his 3 months trip, yeongwoon told seoin he didn't wanna hang out with seoin anymore. See ch 5 (no speech bubble) & ch 21 end.

When seoin returned to korea and looked for yeongwoon, there was a kid with freckle (zoom in to see his freckles) who told him to stop looking for yeongwoon because seoin has no right, see ch 25. There was also flashback a kid with right mole (jaewon) telling seoin that something "come on seoin, don't tell me you think people actually being genuine with you", see ch 21 end.

When seoin and his mom had meal at restaurant, the mom said, that this restaurant is seoin's brother favorite restaurant and they (mom & jaewon) visited a lot when jaewon in college. It's safe to assume that yeongwoon has nothing to do with jaewon death. I m glad he is dead tho. See ch 27

I m not sure seoin is the son of the mother or the father??? But seoin has same sure name 'Han' just like his cousin Han Wonsik (Haeyool's sponsor). And fron what secretary jeong said, the mom was always a director, so I was assuming that mom is chaebol & dad is politician.

When jaewon death anniversary, it look like jaewon is the real family of hyung cousin (Han wonsik) , and because the grandma was crying. See ch 9

Oh one more, if we look closely at seoin & jaewon kissing scene, we can see seoin was pulling jaewon collar. It's possible jaewon set this up for yeongwoon to see in purpose to hurt yeongwoon feeling.