Directed by Koichiro Ito, and with Yasuhito Tachibana as the Cinematographer and Scenario Director, beautiful yet thrilling live-action footage intertwines with mysteries to solve, creating highly immersive gameplay.

The player follows a chain of murders which take place over the span of a century. Four murders have been committed in three different time periods - 1922, 1972, and 2022.

Each episode is comprised of three parts, the Incident phase, the Reasoning phase, and the Solution phase, inviting the player to seamlessly enter into this world of mystery.

When Haruka Kagami, a mystery novelist, visits the Shiijmas, she finds herself taking on four different murder cases - occurring at different points in time.

The Incident phase: See the entire murder as it unfolds, from start to end. The keys needed to solve the mysteries surrounding the murder can always be found in the video itself.

The Reasoning phase: Put together the [Clues] and [Mysteries] found during the Incident phase and create a hypothesis in your cognitive space. You can create multiple hypotheses, but not all of them will be correct. Some things you uncover may lead you down the wrong path.