Yako's younger cousin. Likes: Roblox, Sans, Dad, Kinder Joy. He cries a lot, is a coward, and is in 5th grade. He likes a book with a hard-to-read title called 'Popapopu-ssi'.

Always has his tongue sticking out. He is positive, likes candy, and hunts kaiju. He uses a syringe to shrink monsters and puts them in a vacuum-like device. He is kind. He secretly watches anime featuring girls, like 'Oshi no Ko'.

Negative and likes candy. Like Merong White, he always has his tongue sticking out. He hates working. His tastes are totally like an old man's, but he hides it and doesn't seem like one.

A lava monster that wants to play, but pulls others in and melts them in lava. Presumed to have been human once, and likely had no friends to play with during that time. Weakness: Cooling.

Analyzes kaiju. Always introduces and explains them through song. It always reveals the weakness at the very end. It is a machine.

Female. She doesn't speak and expresses herself through gestures. She finds Sadong cute and cherishes him. She pets Sadong a lot—quite a lot.

The only thing it can say is 'Isn't it fun?' If you make eye contact and don't mimic its movements, it eats your head. Weakness: Field of vision.

A teddy bear monster. If you hug it, it turns people into monsters. Weakness: None in particular.

Splits and doubles in number every 5 minutes. Weakness: Confined spaces.