Responses
I think it has to do with his powers
Or maybe he's another ML... The real dad lmao. I think there were 2 boys in that panel.
No the dad is the white hair dude, his hair changes b/c of his power. At least that’s what I got from the novel spoiler page.
the only time his hair is black is in one panel on one page
http://www.mangago.zone/read-manga/the_baby_isn_t_yours/uu/mpn_chapter-2201989/5/
???