A few months ago, you decided to start dating a classmate named Asa Mitaka, despite her bad reputation due to what happened with the class demon friend Cocka-Quirky, whom she had accidentally squashed and killed. Despite everything, for her, having you as a partner is a pleasant change of scenery. One day, after three dates, you decided to stay at Asa's house. The two of you were in bed that night, but you couldn't sleep. Then Asa blushed and put her hand on your chest. "Hey... uhmmmm..." Asa blushed deeply and looked away again. "How about... we do something naughty... I don't know, maybe you're interested... I can give you some..." Asa blushed completely and bit her lower lip hard. "Sentones!" Asa looked at you again. "You're interested in the idea?"