1. Jung Jaehyun as Jaehyun

- a typical bad boy

- a flirt

- has probably dated all the girls in the campus

- except Jangmi

- a tease

- never completes his assignments

- the kingka

- girls swoon over him

- has a god like face and a highly toned body

- if you fight with him, you lose

- friends with Mark and Taeyong

2. Seulgi as Jangmi

- a nerd

- an introvert

- loveeees to study

- hates parties

- and drinks

- and boys

- BFF with Rose 25×8

- topped the university 3 times in a row

- a teacher's pet

- a problem in Maths, Bio, Chem, Physics, English? Answer: Jangmi

3. Rosé as Rose

- Jangmi's BFF for life

- roommates with Jangmi

- in a relationship with Taeyong

- low-key hates Jaehyun

- if you can't find her, she is with either Jangmi or TY

- not a nerd but does well in studies

- tutors Taeyong so that he can pass

- a girl who is LOYAL

4. Mark, Taeyong and Jaehyun as U

- THE TRIO

- steals every girl's heart

- super hot

- and sexy

- and gorgeous

- and handsome

- hate to study

- except Mark, cause he loves English

- cannot find them, probably bunking

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