21 years old, still a university student,hyuna is doing her student teacher training at elementry school.she was happy with her job until she meet with kris,her 10 years old student.kris seem to ignore her at first but something took him by a change and he fell in love.he bravely confess his love to her but hyuna mistook it and say she love him too.after that,kris give her a gentle kiss and hyuna know that she mess up everything.as many years pass,although she already say her sorry but kris still didn't give up chasing her.one day,hyuna's mother pay a visit at her house and misunderstood when she saw kris on top of hyuna.her mother forcely ask them to get married.what will happen after that?will hyuna heart get defeated by kris charm??gets your weapon ready now!!the battle between the hearts are about to begin!!