Characters: Hana, Jung Taekwoon (Leo), Kirin & Sungmin. Details: Hana – Vocalist of a group named Call Me Daisy, Kirin as keyboard player & Sungmin the guitarist. They went to a same school (Hana & Kirin are classmates while Sungmin are from another class). Jung Taekwoon is a football player (a sport lover) but spend some of his time on music too. He went to a different school from another three characters stated above.   It’s been