I just remember they said the omega was 17 but I’m not sure how much time has passed, maybe he is between 17 and 18, alphas age was not mentioned (I think)
It's really problematic in my opinion but people just over look it cause its BL but the uke is 17 ish and is in highschool while seme is late 30s (Yikes)
True
Probably if you find someone who read the Lightnovel(s) featuring his younger two brothers can tell you, or probably in the Lightnovel for this manga.
I didn't read them, but I think when i saw it at an online store the age of his youngest brother was 23 (and his omega partner 30...). If I have to guess Keiki is ~10 years older tha Riku, but that's only a guess. It doesn't help that they made Riku looking very young and most likely Keiki older than he is.^^"
Does anyone know their ages????