I think Renzou's hair turned white after that.
ranzo is 100% for sure the elder brother
http://www.mangago.zone/read-manga/tourou_no_ori/mf/v01/c001/16/
Omg i just thought of this now...maybe his hair turned white after ikou's mother strangled or did something to him and that caused him trauma right..remember Kaneki? I think it's just like that. Marie Antoinette Syndrome ┗( T﹏T )┛
Um, no? Ikuro is the baby.
And it's just hair, like their hair will never change while they are growing up.
I still don't understand but thanks for the answers
I thought Ranzo was older and he was the one being strangled?? In this page Ranzo is a baby and Ikuro is the one being strangled http://www.mangago.zone/read-manga/tourou_no_ori/mf/v01/c008/17/