Is top sum fucking pedo or smth

Dude what??? They grew up together

There's been pedophilic, grooming and incest undertones since the beginning.
People are complaining now but this webtoon was clearly meant for people who fetishize a certain type of abusive relationship. It's just wrapped in mitigating context to hide their tracks.
Dense people are only now picking up on the signs and even denser people don't understand what they're reading at all.

So a guy not much older than the mc falling for him after they're both already adults is somehow grooming now? Okay

Do you even know what grooming is ?

Yes and this doesn't look like grooming at all to me because they didn't have anything weird going on as kids, it a wasn't until after they were both adults that the pilot dude got back and realized he had fallen for the mc. Maybe I missed something in the backstory chapters but to me this didn't look like a more mature person grooming a child to be their partner later on, it happened after he got back.