Main Characters

Lee JungHwan ( Sandeul )

Lee JungHwan ( 20 ), is your boyfriend. Both of you have been dating since he was 15. Both of you have been staying together since young as he lost his parents at a young age and your parents took him in. He's dorky, caring, loving and adorable. He never fails to cheer you up when you are down. He's deeply in love with you. 

Jung JinYoung 

Jung JinYoung ( 21 ), is your private math tutor. He's been teaching you ever since you were 10. He is not on good terms with JungHwan as he has been in love with you since you were young. He has confessed to you for quite a number of times but has always been rejected. He is a sweet and caring guy, a guy who feels like an elder brother to you.  

Shin DongWoo ( CNU )

Shin DongWoo ( 21 ), is your elder brother. He is friends with JinYoung. He approves of the relationship between you and JungHwan but has constantly urged you to give JinYoung a chance. He is rather slow in his movement and thoughts so it's hard to communicate with him at times. However, his brotherly love never fails to be conveyed to you. 

Cha Sun Woo ( Baro )

Cha SunWoo ( 20 ), is JungHwan's best friend. You're really close to him as he and JungHwan are always hanging out together. Secretly, he has a crush on you but has only made it known to JungHwan. He's a really nice oppa and cares for you. He cheers you up whenever JungHwan isn't around. 

Gong ChanShik ( GongChan )

Gong ChanShik ( 19 ), is your classmate. He's been in the same class as you since you were 11. You once had a crush on him and confessed but was coldly rejected. However, your friendship wasn't affected and the two of you grew closer than ever. You turn to him whenever you quarrel with JungHwan. 

you 

you ( 18 coming 19 ), is currently dating JungHwan. You love him really much but your feelings sway occasionally when you are with Baro, JinYoung or GongChan [ Especially GongChan ]. You're in the same class as GongChan and sit beside him in class. You always approach him whenever you're feeling down [ about things that cannot be told to Sandeul ].