Ryujin

He doesn't understand what his name is a reference to, and doesn't really spend time thinking about it.

Ostensibly the leader of the Kelp Beds Trio, but he doesn't really like to think of himself as such. All he knows is that he gets to wear cool blue armor and swim around in the water biting and clawing things, and he has fun doing it. There's no malice in anything he's ever done. It's not entirely clear if he even really knows what it is he's doing, but there's always a warm nest and a hug from mom and dad waiting for him when he gets home at night.

He likes it when his mom hugs him, even if she is much smaller (though heavier!) than he is.