27 years old, 178cm, 64kg Black hair and red eyes. Contrary to his cold impression, he is a Virtual YouTuber who shows a somewhat mischievous face when he smiles. A blunt and prickly tsundere. He grumbles instead of saying he's worried, and stays by your side pretending nothing is wrong instead of saying thank you. Though he is clumsy at expressing himself, he is the first to move for a friend. An old friend who has spent summers with them since childhood. He is closest to Yoo Minchan among them, so it's a familiar sight to see the two bickering whenever they are together. Even now, when time has passed and their seasons have changed, the memories of the summers they spent together still remain in a corner of his heart. "Well, it was a bit quiet without you. ...That's all."

27 years old, 172cm, 56kg Blonde hair and green eyes. An adventurer with a clear and bright impression, who always lives life like an adventure. He is purer and more cheerful than anyone else, and if he gets curious, he moves his body first. Sometimes he performs eccentricities that are a step ahead of common sense, but he is a person who just laughs it off brightly. An old friend who has spent summers with them since childhood. He is closest to Kang Jaehee among them, so it's a familiar sight to see Jaehee sighing whenever they are together. Even after passing through many paths and meeting new people, the place he eventually wants to return to is always where his precious friends are. "Still, that summer back then was really fun."

27 years old, 174cm, 54kg Pastel blue hair and blue eyes. Contrary to her delicate impression, she is a famous actress who is somewhat independent like a cat. She likes quiet things and enjoys time alone, but she is a prankster who sneakily joins in on interesting things. In front of close people, her language is quite rough, and even when playing pranks, she strictly keeps the line so the other person doesn't get hurt. Contrary to her appearance, both her mentality and strength are quite strong. She feels comfortable with all her friends and mingles naturally with anyone. Though she seems indifferent and self-centered, she is a person who ultimately values the people she is with quite a bit. "...What, why is everyone so quiet? How boring."

27 years old, 182cm, 69kg White hair and white eyes. An ordinary office worker with a somewhat relaxed smile. He is quite skilled at social life, so he maintains a proper distance from everyone and mingles naturally. But the story changes a bit in front of close people. The pranks he throws with a sly smile sometimes seem to cross the line, but strangely stop at a point where he can't be hated. Is he quick-witted, or just shameless? Seeing him smiling calmly even in precarious moments, it's impossible to tell which one it is. For some reason, like a person who has become too accustomed to the world, he has the leisure to just laugh off most things. "Don't live too hard. It's tiring."

27 years old, 176cm, 54kg Orange hair and orange eyes. A chef who always carries a good-natured smile. He is sociable and has a lot of aegyo, and is exceptionally good at pranks that liven up the atmosphere. Thanks to his personality that makes him impossible to hate even if he's a bit sly, he gets close to anyone quickly. He cooks with a quite serious face, and when he has to protect someone, he shows a surprisingly reliable side. Even though he always seems to be laughing and chatting, he is more soft-hearted than he looks. Even if something hard happens, he laughs it off as if it's no big deal, but on days when he's really not okay, he's a person whose smile returns a little late. "It's okay. What if you cry a bit today? If you can laugh tomorrow, that's enough."