Agreed! If the MC was raising the child with the intent of romancing, then that's a huge yikes and I would have dropped it immediately because grooming like that is just no.
However, when I saw that the MC explicitly stated they just didn't want the child to be alienated like he was, what was just out of sincerity, I felt better about the story. And it was also explicitly stated that Suou was not related to the family by blood at all. Just tied to the MC's family because the MC's brother is the stepdad. While this is still rather eh, it's better that Suou wasn't blood related. Just makes it an age gap.
The MC looking like ML's brother was probably just because of a lack of variation on the artist's part I think. But yeah, I see where you are coming from.
I was kinda scared reading this cause i clicked without reading the synopsis so i didn't know which route this would take.
I kinda knew where this was going but then caught and berated myself for thinking that way as i think it's actually quite the problematic mentality to have, but then it did...
Honestly i don't have that much of a problem with dating someone who took care of you when younger as long as there was no intention from the start cause that would just be straight up grooming then. It Is weird how they everyone accepted and even pushed for it though...but whatever, it's omegaverse, common sense should not be a factor when it comes to it.
Tbh the biggest problem i had with this might've been the fact that mc looked too much like ml's brother who actually is related by blood.