Responses
Well, I've read manga where they call parents by their names too so he might be but Aki looks more like kurose's brother so I'm not sure myself.
An idiot went into baka updates and added their own summary without knowing the true story. Aki is Shirose's son.
Oh right ExR tumblr didn't state it, thank you Addis the Yaoi Goddess, thanks for your team's works too, very in love with you guys (づ￣ ³￣)づ
Whose son is aki? Summary said kurose's, from raws i think he is shirose's (since i don't understand a word). And Aki call kurose in name, not papa or daddy or father-like