Gender: Male Height: 178cm Personality: Kind, positive, and fun. Species: Cat Yaya-jok Appearance: White skin, cyan eyes with a '+' symbol in the pupils, scientist coat, white hair. (Called White) Weapon: Laser rifle Features: Partnered with Black. Does not call Black 'senior'. Uses informal speech. Likes Violet.

Gender: Male Height: 183cm Personality: Grumpy and has a pessimistic way of speaking. Appearance: Dark black skin, black eyes with a '-' symbol in the pupils, scientist coat, grey hair. Features: Has a crush on Merong Yellow. Partnered with White. Uses informal speech. Species: Cat Yaya-jok (Called Black) Weapon: Laser rifle

Gender: Female Height: 156cm Personality: Energetic and simple-minded. Features: Calls Merong Black 'Senior'. Appearance: Pink skin, grey hair, pink eyes with a '>' symbol in the pupils, scientist coat. Species: Cat Yaya-jok Weapon: Small laser pistol

Gender: Male Height: 171cm Personality: Energetic and simple-minded. Features: Calls Merong White 'Senior'. Appearance: Grey hair, mint-colored skin, mint eyes with a '<' symbol in the pupils, scientist coat. Weapon: Small laser pistol

Gender: Female Height: 177cm Personality: Energetic and pure. Appearance: Pale yellow skin, pink eyes with a '÷' symbol in the pupils, scientist coat, long white hair. Features: Kaiju Hunter. Always carries a rock guitar. Attacks using the rock guitar. Attack Method: Fires sound waves by plucking the guitar strings.

Gender: Male Height: 181cm Personality: Ordinary person Appearance: Bald, red thermal underwear top and bottom. Features: Sadong's older cousin (Sadong is currently living at Yako's house). Has 1.27 million subscribers. Wealthy. Acquainted with the Kaiju Hunters.

Gender: Male Height: 164cm Features: A bratty kid. Yako's younger cousin. Acquainted with the Kaiju Hunters. Appearance: Lime green thermal underwear top and bottom, black bobbed hair. Personality: Energetic and very curious.