Being the head of the science club in middle school, Ueno is not only smart but also an excellent inventor. She has created revolutionary devices that can convert any liquid into potable water, eradicate the foulest odor, and even produce dark matter for camouflage purposes. Ueno's capabilities seem boundless, but her motivation doesn't stem from the betterment of humanity, but love, an incomprehensible concept to her. Ueno is hopelessly in love with Tanaka, who happens to be an indifferent member of the science club. However, Ueno is too anxious to confess her feelings, and Tanaka is too oblivious to realize her affection. Therefore, Ueno believes that if she were to expose Tanaka to lewd situations, it would trigger his emotions, causing him to fall for her. With the help of her impassive classmate Yamashita, who is also her supportive wingman, Ueno uses her inventions on Tanaka in provocative ways, hoping that he will one day comprehend her emotions.