At the beginning of the school year, a smart girl with an outgoing and cheerful personality and a melancholic girl who is introverted and sensitive met in No. 9 Middle School. Because of their complementary personalities, they quickly became friends and started their high school life. No. 9 Middle School is a prestigious school with "top-notch looks per capita" and a unique military training tradition - led by senior sophomores in high school, which is euphemistically called "promoting emotions." In this special military training, I got to know a humorous, easy-going, sunny and handsome young man, and met a calm and reliable senior who was cold on the outside but warm on the inside. Becoming their instructor disrupted their plans. Since then, the four people have interacted with each other due to various daily life on campus, such as "falling in love and killing each other", club activities, and study competitions. In the laughter and ignorance of youth, they gradually developed feelings for each other, and deduce a story about growth, healing, and the daily life of "wrong people" who run in both directions.
