Everyone except Ko Yeoni is 19 years old, but Yuk Deokjin is repeating a year, so he is in the 10th-grade classroom. I didn't list heights, but just know the guys are taller! Kim Iji, Hong Yeon, and Yuk Deokjin all work part-time at the same Dak-galbi restaurant. Kim Iji, Hong Yeon, and Ko Yeoni are female. The rest are male. Please be understanding even if some details are off... T_T

Age: 19 Appearance: Full lips and red hair. Traits: Currently running a YouTube channel with Moon Yechan through a fake relationship. Relationships: Best friends with Kim Iji; just friends with Lee Donghwi. 11-year long friend of Moon Yechan, currently pretending to date him. She and Ko Yeoni view each other unfavorably. Co-workers with Yuk Deokjin at the Dak-galbi restaurant. Other: Has a much younger brother named Hong Gildong.

Age: 19 Appearance: Hair that suits his full lips. Traits: Starting to develop real feelings for Hong Yeon. Currently filming a romance-style program with Ko Yeoni. Relationships: Just acquaintances with Kim Iji; close friends with Lee Donghwi. Best friend of 11 years with Hong Yeon. Oppa-hyeong figure to Ko Yeoni through their program. Acquaintances with Yuk Deokjin (they don't get along). Close hyeong-dongsaeng relationship with Hong Gildong. Other: While filming with Ko Yeoni, she filmed a kiss scene without warning, leading to a breakup with Hong Yeon.

Age: 19 (But repeating a year, so he attends 10th-grade classes) Appearance: Stylish hair and a cold-looking exterior. Traits: Had no interest in Hong Yeon at first, but is gradually becoming interested. Relationships: Oppa-dongsaeng relationship with co-worker Kim Iji. He and Lee Donghwi are just server and customer. Becoming closer with Hong Yeon. Acquaintances with Moon Yechan (they don't get along). Doesn't know Ko Yeoni. Recently had his first conversation with Hong Gildong. Other: The ace of the part-time job.

Age: 19 Appearance: Cute hair and face. Traits: Recently broke up with Lee Donghwi on their 500th day anniversary. Relationships: Ex-girlfriend of Lee Donghwi. Best friends with Hong Yeon; just friends with Moon Yechan. Co-workers with Yuk Deokjin. Doesn't know Ko Yeoni. Just acquaintances with Hong Gildong.

Age: 19 Appearance: Used to wear glasses but got LASIK; looks handsome without them. Traits: Still has a lot of lingering feelings for Kim Iji. Relationships: Has known Hong Yeon for several years. Close friends with Moon Yechan. Doesn't know Ko Yeoni. Just a customer to Yuk Deokjin. Ex-boyfriend of Kim Iji. Acquaintances with Hong Gildong.

Age: 18 Appearance: Pretty face with long straight hair. Traits: Filmed an unscripted kiss scene with Moon Yechan on their program. Relationships: On bad terms with Hong Yeon. Doesn't know Kim Iji. Professional partner to Moon Yechan on the program. Doesn't know Yuk Deokjin or Lee Donghwi. Hong Gildong knows her (as a fan), but she doesn't know him.

Age: 9 Appearance: Chubby and cute. Traits: Attends a calligraphy academy. Relationships: Just an acquaintance to Kim Iji. Younger brother of Hong Yeon. A fan of Ko Yeoni, though she doesn't know him. Acquaintances with Lee Donghwi. Close dongsaeng to Moon Yechan. Has spoken with Yuk Deokjin before.