At Geumdo High School, students' grades act as the only thing that matters, even deciding cafeteria line order; Eun Ho, a talented artist who can't get good grades, struggles with the irrationalities of the school.

Eun Ho gets caught in the wrong place at the wrong time. Mr Shim attempts to help her clear her name.

The principal offers merit points to anyone who identifies Student X; Eun Ho finds out about a contest that could possibly guarantee her acceptance to Hanguk University.

Eun Ho gets nominated for the final screening of the webtoon contest; the principal and the vice principal come up with an ambitious plan to catch Student X; Soo Ji finds a suspicious warehouse located on school grounds.

Eun Ho does what she can to get a better student record; when Dae Hwi hears about a math contest, he desperately tries to win the award; Tae Woon claims that he is Student X, but Eun Ho doesn't believe him.

Eun Ho becomes more conflicted after running into Dae Hwi; Mr Shim is pressured into breaking some rules.