Koon, Agero and Ran

Last week SIU mentioned that Ran is also a son of Koon. I just couldn't help drawing this..! Ran is just so cute with that fluffy hair.

I really really want to know how Agero recruited Ran into his team. Of course they are (step, I guess) brothers, but don't the Koons have like super competitive 'upbringing' or 'family culture'? I'll be so sad if I found out Ran struggled so hard to compete with that many brothers just not to be abandoned! He is just a baby T.T