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Spiral: Bonds of Reasoning

スパイラル~推理の絆~

Ayumu Narumi has spent his life in the shadow of his older brother Kiyotaka, a world-class detective who vanished two years ago after leaving behind a cryptic message about the Blade Children.

When a girl at Ayumu's school dies, what at first seems a suicide turns out to be murder, and Ayumu is named the prime suspect. To clear his name he starts investigating, aided by his sister-in-law Madoka, Kiyotaka's wife and a detective herself.

The trail leads him to the Blade Children, a group somehow connected to his brother's disappearance. The more Ayumu learns about them, the more questions he has about who they are, what they want and how dangerous they can be.

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