The author has expressed multiple times that the father/son characters will remain so in the main story, but they sometimes make non-canon bl doodles of the characters as ADULTS because i think they're originally a BL author. If that makes you uncomfortable, that's all well and good.
But why constantly complain about it in the comment section of an illegal website, that the author will never see btw, instead of just.. idk.. not engaging with the story??
Y'all are shouting into the void about a problem you will never have. If you don't like the non-canon parts, don't read it. You'll probably sleep better.
Really hoping it doesn’t become a BL. It would be so weird.