Kotoko Iwanaga delves into a historic Edo era mystery when a high school friend consults her about his family's possible connection to yôkai. According to legend, a samurai named Shirokura Hanbei battles and slays a yuki-onna in the mountains. Hanbei is later suddenly killed under mysterious circumstances and there are two suspects: himself or the yuki-onna. The spine-chilling "To Slay a Snow Woman" mystery continues. Confronted between the choice to tell the truth or to lie, how will Kotoko present the evidence?