ok so felixs mom & leegangs mom were high school friends (i think that felixs mom had a crush on leegangs but that's just me) & felix & leegang are now neighbors but bc of that photo in the last panel we now know that leegangs mom is the real mom of gio (bc he's adopted if you forgot) so they're either half brothers or full brothers this was a lot so if you're still confused i'll try to explain more in depth

this is all too much for me