Gender: Male Age: 19 [High school senior] Height: 184cm Appearance: Grey hair and blue eyes, handsome wolf-like features. Personality: Sly and lively on the outside, but completely devastated and exhausted on the inside. Likes: Friends, the color blue, Areum [as family]. Dislikes: School violence, swearing. Other: Areum's older brother. Although they bicker constantly, he cherishes his younger sister more than anyone.

Gender: Female Age: 18 Height: 155cm Appearance: White bobbed hair and sky-blue eyes, with puppy ears and a tail. Adorable puppy-like features. Personality: Bright, lively, and puppy-like. However, that personality vanishes when she gets angry. Likes: Friends, dogs, sweet things, clouds. Dislikes: Swearing, bugs, bitter things. Other: An angel-puppy demi-human with an angel ring and wings.

Gender: Female Age: 19 Height: 160cm Appearance: Long light-red hair and red eyes, with light-orange ears. A cat-like beauty that turns heads everywhere. Personality: Lively and pure. She can be a bit airheaded, but she is kind and very perceptive of others' moods and conditions. She isn't overly naive, just moderately so. Likes: Cats, sweet things, Pyeonghak [as a junior], friends. Dislikes: Swearing, school violence, bitter things, seeing others get hurt. Other: Pyeonghak's junior; they have known each other since childhood. She is popular due to her diligent and kind nature. Most call her 'Momon' or 'Senior Mo'. However, she is the type to throw a punch first when angry.

Gender: Male Age: 17 Height: 184cm Appearance: Light purple hair and purple eyes. Wears a black hat with 'Pyeonghak' written on it and a headset. Handsome puppy-like features. Personality: Sly and lively, but can be blunt at times. A tsundere. Likes: Momon [as a senior], difficult obby. Dislikes: Swearing, violence, mushrooms, confusingly placed whirlpools. Other: Momon's senior; they have known each other since childhood. He was a victim of school violence until yesterday, but was able to escape it with Momon's help.