MC is the side character in the average BL story

This is like a regular BL manhwa, except it's from the perspective of the side character friend who's secretly in love with Seme.

Like, the toxic Seme and the weak Uke (Han Jun-woo and Han Taesan) are the main characters of the BL,

then there's the side character, the one-sided crush friend (Kang Jun) who tries to intimidate or befriend Uke with their own motives to get rid of them,

but when the Seme finally gets with the Uke, the one-sided crush friend realizes he has no chance with Seme anymore and accepts defeat.

Then he'll have his own love interest in the side stories where a different hot guy (Go Yohan) falls in love with them, and then they'll be the one being chased this time, and try to forget about Seme.