Yu Min, a shy high school boy, be has trouble with holding his pee at school because the teachers won't allow him to use the toilet. He is 18 years old and has pink hair he is also shorter than the other students. He doesn't have any friends because he's socially awkward and everyone makes fun of him for constantly needing to pee. But it's not exactly his fault that he has a small bladder and that he drinks water when he's stressed Which is most of the time. He is also afraid of the dark