In 2027 Kyoto has become a hub of cutting‑edge technology. Two students share the same school: Naomi Katagaki, who is shy and withdrawn; and Ruri Ichigyou, a girl whose icy demeanor makes her blunt to others. Although both enjoy books, Naomi keeps his distance from Ruri because of her unfriendly aura. The city"s neon glow reflects off the sleek streets, making every corner feel like a scene from a sci‑fi novel.
During a stroll one afternoon, Naomi sees a fleeting crimson aurora slice the sky before it disappears. Soon after he meets a three‑legged crow and a hooded stranger, who turns out to be Naomi from ten years ahead. The future version explains that he has arrived to prevent a looming tragedy that will befall Ruri shortly after they begin dating. Skeptical at first, present‑day Naomi heeds his advice and starts to get closer to Ruri, resolved to alter the outcome. Naomi"s heart pounds as he approaches, fearing rejection yet driven by a newfound hope. Will he succeed in rewriting destiny?
