Haru works at a university’s library. She is not particular about her meals and is more interested in keeping up with information on her favourite manga through her smartphone. One random day, Haru becomes depressed by the words of pity she hears about herself every day. That night, she heads to her regular drinking spot to soothe her hurt. She gets drunk with an androgynous guy called Ao-kun and they hit it off. The two of them end up living under one roof on impulse. However, the rule for living together is to make lunch boxes for each other? Adapted from the manga "Haru and Ao's Lunch Box" (ハルとアオのお弁当箱) by Machita (まちた).