Mina is a popular girl at her school. She is basically describes as a perfect human being by her admires because she not only beautiful,she is also clever and humble eventhough she comes from a rich family.  No wonders she got so many admires. One day, she got a love letter at her locker from someone unknown. At first,her heart flutters when she get the letter as it is her first time to get a love letter from someone. Usually,the students will confess to her directly and she has to reject every person politely. So this time,it catch her interest with this someone style to confess. Later on,it becomes a routine for mina to open her locker every morning to get her love letter and be more curious about this person.