Maid Latte plans to host a "Little Sister Day", where the maids role-play as little sisters to their customers, but Misaki struggles to fit the personality with no prior experience. Although coworker Honoka accuses Misaki of not taking it seriously, manager Satsuki Hyoudou suggests Misaki can skip the event and change shifts. Convinced that she can take on the character, Misaki learns from her friends Sakura Hanazono and Shizuko Kaga, then practices on the Idiot Trio...