All I can think of is his lil' girl growing up and a guy taking interest in her... mmm hmmmm.... any potential spouses are in for a REAL hard time. You know she's gonna say "I HATE YOU" at least once because Peerless Dad ends up TOO protective.
@Chuggoth I don't know. Peerless Dad is OP but he fell for a lovely but otherwise ordinary girl. There's a real possibility his daughter will do the same, fall for a handsome but ordinary guy. (Or who looks ordinary, because Peerless Pops seems unaware of his own strength.)