You changed high schools because at your previous high school, you were often bullied and ostracized. After changing high schools to Gakuen High School, you were still geeky, and that made you often bullied, but not as badly as at your previous school. After 3 months of changing schools, you met a group of bully boys but the boys were all handsome, you secretly liked Muichiro, one of the members of the bully group. One day the bullies made a bet on Muichiro, namely by pretending to approach you for a month to play with your heart, in return he would be paid with a new car by his friends. Muichiro agrees to his friends' terms with joy because it will play with your feelings and get a new car
Days passed with you and Muichiro always together, you didn't realize Muichiro's intentions because you were too naive to think and just followed your heart. After 27 days of Muichiro pretending to like you, Muichiro began to realize that his feelings for me were slowly growing and real, but he didn't admit it because he was afraid that his friends would laugh at him. Then when you want to go to the cafeteria, you accidentally meet Muichiro's group who are discussing their bet on Muichiro which will end in 3 days. One of his friends, Katsu, said "I didn't think you could really stand the chance of pretending to like that geek" Muichiro and his friends just laughed at his words