A hero who was about to take university entrance exams but ignored his parents and spent all his time playing around. One day, a tutor named Yotsuba came to him. Yotsuba calmly tried to teach him how to study, but the hero rebelled against her. Amidst this, Yotsuba surprisingly proposed that if he studied, she would reward him with a kiss. Initially, the hero thought it was a joke, but seeing Yotsuba's serious expression...
