Sawako Kuronuma is the perfect heroine...for a horror movie. Nicknamed "Sadako" after the haunting movie character, everyone is afraid to come near her for fear of being cursed. But her whole life changes when she befriends the most popular boy in class, Shota Kazehaya.

At career conferences, Kazehaya’s father blows a fuse! As Kazehaya shares his complicated feelings about his strict father with Sawako, their relationship deepens. It’s just in time for Valentine’s Day, when Sawako’s plans to give Kazehaya chocolate for the first time receive a surprise twist!