Every day is a perfect 10 when they are together♪ The latest work by the author of Cool Kyoshinsha is a scoring comedy featuring a quirky and chaotic duo. The meeting of the score-obsessed Sain Makoto, who rates everything on a placard, and the lively Koenji Kyou, who wants to get along with everyone, feels like destiny. After numerous trials and errors, Koenji Kyou gradually learns to read Sain Makoto's true feelings and finds herself getting more and more drawn in. One day, Azuma Shiori notices their relationship and approaches them, starting to indulge in various experiences together. How far will the relationship of these two very different individuals +1 develop? Is this feeling friendship? Or something more…? Now inseparable, Koenji Kyou and Sain Makoto try part-time jobs together, go to the beach for assignments, and learn more about each other's pasts, deepening their bond. Meanwhile, Azuma Shiori enjoys watching the two stick together like mochi, while Kazumi, who is jealous of their relationship, makes a new appearance. However, the trials ahead may prove to be too much for the still young duo. How will Koenji Kyou and Sain Makoto overcome these challenges and convey their feelings to each other?