In a certain rural inn, "Tsukikage-so," nicknamed the "Widows' Inn": the beautiful proprietress Haruna runs the inn together with Akie, a maid who is also a widow. Then, Natsumi, who lost her husband just six months after their marriage, joins them. Tsukikage-so is advertised online as a "widows' inn where you can do whatever you want." Lured by this information, three men travel a long distance to the inn, ignoring the warnings of a local farmer…