The ML isn't a red flag if that's what you mean.
But the antagonist does a lot of fucked up shit until the end so there isn't really a poin where you can jump in and it won't be heavy
I'm here because I'm pondering whether to pick it up after dropping it 2 years ago. The constant rape and shit the bottom goes through was such a hard read. But the top is genuinely sweet, he was my favourite part. I remembered that the antagonist and torture porn was just too much for me so I dropped it. I always ponder whether to pick it up again because of how much I did enjoy and love the couple themself T_T
soooo im 95% sure this is a red flag manhwa but is there ANY chapters later on into the story where its normal? i want to satisfy my curiosity