Shoji's sweet-natured girlfriend. She works at the same restaurant as Shoji. Early on in the manga, Hachi once dreamt of Shoji two-timing her with a buxom, Prada-loving city girl named Sachiko (she thought of the name randomly). Ominously, it later turned out to be true, though the real Sachiko is nothing like "virtual" Sachiko. Interestingly, Hachi also plays with the idea of naming her unborn daughter Sachiko.