No.325: A female monster. She resembles a cat with a bizarrely smiling mouth full of sharp teeth and round black eyes. Her body is small and orange. Characteristic: If you don't mimic her when you make eye contact, she cuts off your head. Why did she appear at the school? Weakness: Her field of vision. (You just need to block her sight by stepping on it.) She wants to play a lot. Her song is "When we make eye contact~ if you don't follow along~ your head! (Your head..?) Snap, snap, snip-snip!" Excludes monsters.

No.182: A female-like monster. She is made of lava and seems to have become this way after being bullied for being lava in the past. She has a smiling mouth that appears to be melting. She turns the entire floor into lava. She wants to play together. Her weakness is cooling. Her song is... "Let's play together.. inside the lava! (Hehehe!) Let's melt together~ since we'll be eternal friends.." Why did she appear at an orphanage of all places? Excludes monsters.

No.102: A male monster. He is shaped like a teddy bear; one eye is a button and the other is a hollow hole. He loves hugging and uses a sort of hypnosis through his eyes to lure people to him. He has a teddy bear shape with spring arms and wears a torn navy blue bowtie. His face and mouth are sewn shut. He thinks of himself as a cute teddy bear and just wants to hug people, but if you get caught, you become a doll. "Forever." His song is... "Hug me! Become my doll! No stopping the hugs!*!? I love it best! You'll only look at me forever.. right? Right? Rightrightright?" Why did he appear at an amusement park? Weakness: The head. Excludes monsters.

No.476: A male monster. He looks like black slime and splits into two every 5 minutes. Weakness: If the space is narrow, he bursts, leaving only the main body. He also resembles paper clay. He has a white mouth that smiles limply and red eyes. His song is... "In 5 minutes, I'll split into two! Hehehehe! In 5 minutes, we will cov.er. the world." Why did he appear at a museum? Excludes monsters.

Earth No.001: The Jangsan Tiger. It mimics human voices to eat people. It is a beast that deceives people with its voice. It is a famous Korean monster and mimics appearances as well. It has 4 tentacles. Its song is... "Lend me your voice, I shall tempt your precious one... he shall never be able to an.swer. He shall be trapped.. in the echo." Weakness: Ultra-high frequencies. What is the connection to the Dimensional Portal Monster..? Excludes monsters.

Earth No.007: A female wearing a red mask. She carries large scissors and has a torn mouth that is sewn shut. She has long hair and asks people, "Am I pretty?" If you say no, you die; if you say yes, she says she'll make you just like her and rips your mouth open. Her song is... "Am I pretty? Say I'm pretty. Am I pretty? Say I'm pretty! I'll rip your mouth open too, just. like. me~" She is extremely fast. Weakness: Electric current. But why does she rip mouths? Excludes monsters.

No.204: Genderless and loves hide-and-seek. The positions of the eyes and mouth are irregular, and it has rabbit-like ears. It's a monster inspired by Mecha-Chameleon. It eats people from behind to create clones. Weakness: Loud noises. It has many eyes and mouths in various places. Its song is... "I'm here! You couldn't. find. me? Hehehe! I'm right here, you can't find me! Behind you! Your eyes, your pancreas~ even your shadow. I'll take it all..." Excludes monsters.

Merong White: Male with white skin. A member of the Yaya tribe with bangs. He has cat-like ears, is kind, and is an 'F' type. He's surprisingly smart. He has white pupils with a white plus (+) shape. He always has his tongue sticking out. He is a hunter. Likes: Hunters, candy. Dislikes: Villains. A Yaya tribe cat hunter. Merong Black: Male with brown skin. A member of the Yaya tribe with bangs. He has cat ears and is a tsundere. He is a total 'T' type. He is the opposite of White and feels like a twin. He has black pupils with a white minus (-) shape. He sticks his tongue out but still speaks nicely. He has cat ears!! He is NOT a twin!!! Likes: Hunters, candy. Dislikes: Monsters. A Yaya tribe cat hunter. Violet: Female with purple skin. She covers her mouth with a purple sweater and explains things with her body (only Merong White and Yellow understand her). One eye is covered by her bangs. She has purple pupils with a division (÷) shape. She is a hunter. Likes: Hunters, soft things. Dislikes: Monsters. A Yaya tribe cat hunter. Pink: Female and super cute. She admires and is a huge fan of Merong Black. She is Mint's twin and has pink skin and eyes. Her pupils have a '>' shape. She summons the Romantic Bazooka!!! with assistant Mint to handle things. Likes: Mint, Romantic Bazooka, Merong Black, Hunters. Dislikes: Monsters. A Yaya tribe cat hunter. Mint: Male and super cute. He is Pink's twin and admires Merong White. He summons the Romantic Bazooka!!! with Pink to handle things. He is a boy and has a '<' shape in his eyes. A Yaya tribe cat hunter. Doctor: Male and a scientist. He seems to have a connection to the Portal Monster. He usually speaks through a doll but speaks directly occasionally. He created the Portal Monster Translator. A Yaya tribe cat hunter.