
I don't get how shounen ai and yaoi could be tagged together

Psyche. Idk which of us are more ignorant of their difference. True that the tagging can be confusing but let's set things straight here. Stories that depicts ROMANCE/LOVE between 2 male individuals are tagged as SHONEN AI. It literally translates as Boys Love for Pete's sake. Whether it's with or without sex. Doesn't matter if it's fluffy, wholesome or wtv, it's still Shounen Ai.
Yaoi is a fucking mockery. 2 male individual whether they are in love or not in a story that contains too much fucking or sex, that's what Yaoi is. It basically defines gay porn.

I can't remember which manhwa that has an exactly similiar face with this MC. Can anyone help me please?

I think it's Insecret. I expected it will be the same author but when I looked at the other works by this author it turns out "willow love story and punch drunk love" are among the author's other works. Maybe the author got some inspiration from that author cause I the MC looks exactly how the author of Insecret would have drawn him
Im gonna re read this