Yea, they're related although it seems like they're pretty distant relatives since Akiha didn't know a lot about the family. Tbh I just kinda forget/ignore they're related at all when I read it >_>
There's a part in chapter 3 or 4 that Akiha said they aren't really a relative.
Wow I completely missed that, thanks for letting me know!
In chapter 3 he literally says they are tho;*
Are they related i- (◎_◎;)