Oh, they knew each other when they were kids? Ok and ? Pfft do I look like I care??

My exact reaction. Author built up this whole profile about how Yahwi's being a dick and now we get to see that they magically knew each other when they were young when nothing much really mattered?

Maybe because it's only been one chapter of flashbacks but it's pretty insignificant if this is all the author is gonna write.

Exactly, and the way he still acted like an asshole with him even though they were knowing each other when they were kids, is what makes me mad, he chooses his reputation over him. What the fuck :D