bl reco where the ml found out he has a child years later
Some more :
https://www.mangago.me/read-manga/dear_benjamin/ (on hiatus since forever)
https://www.mangago.me/read-manga/deliverance_of_the_counterattack/
https://www.mangago.me/read-manga/surge_looking_for_you/ (not immediately in the story, it happens after 50 chapters)
https://www.mangago.me/read-manga/again_signal_acel/
everyone in their whole love organza is pathetic, tbh the boyfriend is probably the most tolerable one, cuz we have home wreckers one after another and someone thinking about sex with another person even though he has a bf