Love is inefficient - Tokami Riku is the one who advocates such a anti-love policy. One day after school, he sees a female student looking for something and calls out to her. "Could it be that you want to so something naughty with me?" "Yes...?" That girl, Mimori Yui, is famous for being a bitch and the most hated girl in school. After that, Riku helped Mimori to find something and they became friend, and then later she confessed her love to him. Being the one who has given up on love, Riku has no romantic feelings for Mimori, but for some reason he decides to go out with her for her sake. "Hey, can i kiss you?" "I'm running low on Riku-kun's composition, i need to replenish it." "For a while, my heart hasn't stopped pounding." So, i started a youth romantic comedy with a second-hand (?) girl. (Source: Kodansha, translated)