In the narrative, we are introduced to kōichirō, who is a high school student in his first year and serves as the main character. his household consists of four individuals - his father hajime, stepmother minatsu, younger stepsister mio, and himself. it's important to note that while mio is minatsu's daughter, she is not related to kōichirō by blood. this dynamic between the characters affects kōichirō's perspective on love and romance due to his strained relationship with his father. in an attempt to change this aspect of his personality, hajime enrolls kōichirō in aikyō academy, which specializes in teaching lessons related to love and romance. despite his dislike for sweet foods, kōichirō is a complex character with multiple layers that make him interesting to follow throughout the story.