Nozomi Kuroda is in the 2nd grade of high school. One day, she finds a letter in a classroom desk. The letter has only the word "like" written on it. The person who wrote the letter is Jun Setoyama. He happens to be the most popular boy at the high school. Nozomi Kuroda feels embarrassed, but she eventually leaves a reply in a shoe closet at school. This is how their secret exchange diary begins. Nozomi Kuroda soon learns that the intended recipient for the first letter was her best friend. Nevertheless, Nozomi Kuroda is attracted to Jun Setoyama, who expresses his thoughts and feelings unlike her. She's unable to tell him the truth that the person exchanging messages is her and not her best friend.
| Actor | Role |
|---|---|
 Fumiya TakahashiJun Setoyama | Jun Setoyama |
 Hiyori SakuradaNozomi Kuroda | Nozomi Kuroda |
 Mizuki KayashimaErino Matsumoto | Erino Matsumoto |
 Ryosuke SotaHaruto Yoneda | Haruto Yoneda |
 Nagisa SaitoYuko Hayashi | Yuko Hayashi |
 Mizuki ItagakiHiroto Yano | Hiroto Yano |
| MMaru KiuchiSaya | Saya |
 Coco MasuiMoe | Moe |
| FFuta KimuraIshii | Ishii |
| YYuukaMiku Setoyama | Miku Setoyama |
 Hiroto TakahashiSho Suzuki | Sho Suzuki |
 Riku IchikawaJun's Classmate | Jun's Classmate |
 Dandy SakanoMathematics Teacher | Mathematics Teacher |
 Yumi MitaniJun's Grandmother | Jun's Grandmother |
 Yuki HirakoRadio Station Director | Radio Station Director |
| AAyaka ShimodaNot listed | Not listed |
 Nagisa TakanoNot listed | Not listed |