All eighteen year old Choi Hana wants is for her longtime crush Kim Junkyu to notice her, but that's pretty hard when all the girls in her class are crushing on him as well. That's when three mysterious figures appear to help her overcome her shyness and confess to the boy she likes. There's Yoshi, Hana's guardian angel, Doyoung AKA Cupid and Haruto, a fallen angel who is assigned to help her in order to regain his spot back up in Heaven. What will become of Hana?