Futaba Igarashi works for Itomaki Trading with goals of becoming a salesperson. Being shorter than average, Igarashi is dwarfed by her senpai, Harumi Takeda, who is taller than average and teases her by tousling her hair. Igarashi and Takeda visit companies to give sales pitches. Takeda lets Igarashi give the pitch and she makes her very first sale. The next day, Igarashi learns she made a mistake and owes the client an apology, then feels worse when Takeda gives the apology. Igarashi forgets her train pass and returns to the office to retrieve it where she finds Takeda asleep, having worked late to fix her mistake...