I loved it <3, there was something different about it, the intimacy, the hugs, I wanted to squeeze myself between them it just looked so cozy and comfy.
The relationship he has with his best friend, is toxic, I can relate to it a lot, I ignored so many flags, mine become mentally abusive, he should really distance himself, he feels obligated to remain friends with him because they're childhood friends, he doesn't have to though, no one does.
Maybe it's Isaac at the end with the knife, trying to keep the DNA test results a secret.
[SPOILER]
It is Isaac ヾ(❀╹◡╹)ノ~
do you know where we can read raws ^^
Newtoki has the raws in the BL/GL section
https://newtoki78.com/bbs//board.php?bo_table=webtoon&wr_id=907681