How could we trust your brother doesn't come back if we unban you? Yeah, there's no real way...
Your brother needs to make an unban request of his own.
Reasons he was banned for:
karasu's alias:
FUCK.U.KESSA, iEatBOOBs, IWankCats, Karasu, KESSAimSRRY.UNMUTE, Kshxixan, Yumil, ^Gary
On top of those, slightly advertising another server, trying to be an smartass, not listening to admins and evading their punishments via /q. Not to mention flaming while muted.