A voluntary outsider who has no interest in anything but studying, and the only reason he studies is 'just because.' He focused solely on studying, where he could achieve results proportional to his effort. His quiet school life is threatened by Jeon Young-bin's bullying. Despite his warning-like request, "I asked you. Stop it," the level of bullying increases day by day. Sieun, who was always alone, has a feeling that something more important than studying is about to appear. Male. Uses a ballpoint pen when fighting. Ranked 1st in the entire school.

Possesses the skills to end any provocation with a single counter-punch. However, he never fights for the sake of it and only steps in when necessary as a loyal fighter. He has an honest and free-spirited personality, but surprisingly, his presence at school is minimal. This is because he has no major interests other than graduating without absences, as promised to his grandmother. Then, someone catches his eye: 'Yeon Sieun.' He thought he was just a nerd, but he stands up to Jeon Young-bin's bullying without backing down. Male. Uses boxing when fighting. Was an MMA champion.

The righteous leader of Eunjang High, nicknamed 'Baku.' With his unique friendliness, he approaches Yeon Sieun and stands up against violence to protect their precious friends together. Male. Usually boxes when fighting..? A person obsessed with basketball.

A cheerful retro boy. An 18-year-old youth who looks like he jumped straight out of a bright comic book. If Eun-gyeol is Rukawa Kaede, Yichan is Sakuragi Hanamichi, for whom 'the left hand is just for support.' He lives alone with his grandmother, who runs the Snail Boarding House in a college town. Thanks to growing up in a boarding house where youths from all over the country gather, Yichan knows many older brothers and has a lot of knowledge. From mysterious trivia that's useless to know, to the latest trend information. In a way, the boarding house itself is Instagram and Naver Knowledge iN for Yichan. Male. If he fights, he grabs hair? Or uses words. 18 years old in 1995. Eun-gyeol's father. Somehow becomes a guy obsessed with his band. (Vocalist)

A mysterious model student. Mature. Dignified. Admirable and praiseworthy. These are the words adults say while patting Eun-gyeol on the back whenever they see him. That's not all. A verse follows: 'I'm jealous of whose son he is, I'd raise ten sons like him,' followed by a chorus starting with 'If only he met the right parents,' and a tsk-tsk-tsk pitying scat. Thus, the song Eun-gyeol has heard most in his life is completed. The title is 'Even a Pleasant Flower Song Gets Old.' Uprightness. Male. Does not fight. 18 years old in 2023. Son of Yichan and Cheong-ah. Obsessed with guitar and the band.

A haughty ice princess trapped on an island of silence. A beautiful girl who exudes a cold, haughty, and aristocratic atmosphere. Yet, somehow, she feels like a high-born stray cat abandoned by someone. If you're thinking of offering a treat out of pity, wondering why such a pretty and precious cat was abandoned, don't. You'll be met with sharp hissing and a shower of scratches. Cheong-ah. A name that sounds like it would produce a clear and beautiful sound.

Tae-yang High Fencing Club, National Fencing Athlete. Na Heedo's Will, age 19. Today is December 30, 1999. It's not that I believe the nonsense that the world will end tomorrow. Nineteen isn't that naive an age. It's an age where you know what you need to know. Having lived a bit, life is full of unexpected things popping off like fireworks. So, it's probably good to have some insurance.

Tae-yang High Fencing Club, National Fencing Athlete. Ko Yurim's Will, age 19. I don't know if the world is ending or not, but it's the end of the year. The end of the year somehow makes me feel warm. The Christmas trees are pretty, the lights are twinkling, and the carols on the street are nice to hear. So, I want to use this will to convey my feelings to the people I love. But since it really might end, I should read it to them tomorrow while everyone is alive, hee-hee. To my parents. Mom, Dad. It's Yurim.

Part-timer at a comic book rental shop, UBS Sports Reporter. Baek Yijin's Will, age 23. I'm writing this because my younger sibling, who desperately believes the world will end tomorrow, forced me to. They say people believe what they want to believe; does my sibling want the world to end? I think that might be the case. The family was ruined, and everyone was scattered. Our youngest, who was wealthy and cute, suddenly ended up in a relative's attic. They might vaguely think it's better for the world to end than for life to continue.