Kim Jongin is 18 years old and in his last year of school. He is loyal like a dog and strives for the best. Do Kyungsoo however, the school describes him as a 'rebel rouser' or an 'irritation to the system'. He is 19 years old and was kept back a year for his lack of effort in his grades and general tardiness.

“Jongin has never experienced an obstacle like Kyungsoo in his life before. He doesn't know how to handle it.”