Aoi, employed at a quaint bookstore, faces overwhelming financial obligations stemming from an accidental incident that has left her in dire straits. The proprietor of the establishment imposes a series of unconventional duties upon her, prompting initial resistance as she grapples with the situation. However, her latent submissive tendencies begin to influence her responses, drawing her into a more compliant role shaped by both the owner and the shop’s regular clientele. This gradual shift transforms her outlook during each shift behind the counter.