In a quiet Japanese city, a group of friends becomes embroiled in a series of strange events following the mysterious death of a local artist. The protagonist, a young artist named Mitsuko, feels drawn to the case and begins to investigate on her own. As she delves into the history of the deceased, she uncovers a dark secret that connects several residents of the city.
With the support of her detective friend, Kaito, the pair unearth a web of jealousy, betrayal, and old rivalries that have lain dormant for years. The plot thickens when Mitsuko starts receiving anonymous letters that threaten her, revealing that someone is willing to go to any lengths to protect the secret they have kept buried. Each new clue she follows leads her deeper into a darker corner of the life of the deceased artist and his acquaintances.
As Mitsuko and Kaito venture toward the truth, they realize that appearances can be deceiving, and the community they once considered a refuge is riddled with shadows and secrets. Tension mounts, and in time, both will have to decide how far they are willing to go to uncover the truth. The atmosphere of intrigue and exploration of human nature makes this story a captivating tale about the cost of truth and the struggle against the shadows of the past.