Sunoo is a bright and kind-hearted student from a humble background who unexpectedly receives a scholarship to attend the prestigious Shinhwa High School — an elite school ruled by the powerful and wealthy F4, a group of four influential boys: Jay, Jake, Sunghoon, and Heeseung. F4 is known for their good looks, family wealth, and dominance over the school. Sunghoon is the confident and fiery leader, Jake is charming and warm-hearted, Jay is cool and reserved with a mysterious edge, and Heeseung is the calm and intellectual one. When Sunoo stands up to F4 after witnessing their bullying, he quickly becomes their next target — but his boldness catches Sunghoon's attention.

One day, Sunoo was walking as he saw Sunghoon, Jay, Jake and Heeseung talked in the boys changing room. Sunoo hid at the corner to listen what they were talking about.

Heeseung: Hey, what do you think on making a bet? If I get Sunoo wrapped around my fingers yall are giving me a hundred grand.

Jay: Deal.

Sunghoon didn't seem to like it but he sighed since he didn't want to look like a loser

Sunghoon: Sure.

Jake: I'll make him mine soon.