Ichijuki’s detective agency. A single shield put up at a shabby building. There, the silver-haired girl Ichikuji and the man in black Ninomae made themselves... more>> at home. Bound to a contract, a single wish if you will, they’re hunting souls. They are demons, waiting for the next human to come knocking on the rusty door of their agency. <<less

The story of Hantsuki focuses on the budding relationship between Yuichi Ezaki and Rika Akiba. Both teens are hospitalized in Yuichi's home town hospital for... more>> their respective conditions. Yuichi has hepatitis A which can be cured with rest, while Rika has problems with a weak heart valve (cardiomyopathy, to be exact) that can only be cured with a risky operation. These teens would then fall in love while they spend time with one another. <<less