Sunohara-sou no Kanrinin-san

Synopsis

Aki and Ayaka help Nishiki with her liquor store's Oktoberfest celebration. Nishiki only has women's uniforms, so Aki has to wear a dress while working as a waitress; she offers to make him the store's poster girl because of how pretty he is. Later, Nana visits and ends up making Ayaka insecure over her body by talking about weight gain. Ayaka exercises the entire night and catches a cold. Aki takes care of her while she rests, and has to embarrassedly wipe sweat from her naked body; after she gets better, she promises to return the favor if he gets sick.

(Source: Wikipedia)