Naomi Katagaki and Ruri Ichigyou, two high school students with contrasting personalities, bond over their shared love for books. Despite Ruri's initial aloofness, Naomi discovers her kinder side as they grow closer. Their friendship blossoms into romance, only to face a tragic twist when Ruri falls into a coma after being struck by lightning. Determined to revive her, Naomi embarks on a heartfelt journey to bring back the girl he loves, no matter the challenges ahead.