Aku: none of your business.

His grandpa is immortal bc he’s a warlock, his bloodline turned out immortal too.

Aku: then I’ll lose interest and get rid of them.

If given the chance

Aku: torture them until they wish they could.

Aku: I only find it amusing.

Aku: i don’t mind it much

Aku: *laughs* that’s exactly why no one does it.

the purpose of the guard is not only to watch over him, but to keep him entertained, away from trouble and to be able to stop him from causing major damages, hence calming him down right away or stopping him physically. It’s not something anyone can do