In this risqué coming-of-age romcom with a peculiar blabbermouth twist, Ogami-san, a high school girl, is struggling to keep her lewd daydreams and impulses at bay. Her mind is overflowing with lascivious fantasies, but she's determined to maintain a normal school life by suppressing her unruly thoughts. However, when she reaches out to Yaginuma-kun, a mysterious and charming boy in her class, she can't control her impulses and ends up blurting out her deepest desires. Despite wanting to explore his body and connect with him on a deeper level, she can't afford to expose her true self. The predicament leaves her at a loss, but what could she possibly do?