Name: Do Kyungsoo 
Age: 23
-Culinary major, music minor 
-The adopted son of the Oh family
- his best and only friend is Jongdae
- in his last year of college

Name: Kim Jongin
Age: 18
- graduated high school but his father won't let him go to college 
- he's a sweetheart
- he doesn't want to hurt Kyungsoo

Name: Kim Jongdae
Age: 19
- waiter at Kyungsoo's favorite café 
-in his first year of college 
-Kyungsoo's best friend 
-worked relentlessly when Kyungsoo went missing

Name: Kim Minseok
Age: 26
-police officer 
-worked along side Jongdae, trying to find Kyungsoo 
-financially supports Kyungsoo and Jongin

Name: Oh Sehun
Age: 17
-heir of Oh Enterprise 
-acts like he hates Kyungsoo 
-hates being the son of the CEO, he wants to be normal 
-in his last year of high school

Side characters: 

Name: Park Chanyeol
Age: 17
- Sehun's best friend

Name: Byun Baekhyun
Age: 17
(His role is important later on, no spoilers!)

Name: Wu Yifan (Kris)
Age: 26
(His role is important later on, no spoilers!)

Name: Zhang Yixing
Age: 25
(His role is important later on, no spoilers!)

Name: Huang Zitao
Age: 20
(His role is important later on, no spoilers!)