Kimizuka, a middle-school student, meets the beautiful detective Siesta in the process of thwarting a plane hijacking. As they next investigate a...

Kimizuka is approached by Nagisa Natsunagi, a girl with a yearning seemingly inspired by the heart she received in a transplant. When Kimizuka asks...

A teen idol, Yui Saikawa, enlists Kimizuka and Natsunagi--who has taken up the mantle of legendary detective--to guard a priceless sapphire. In...

On the night of Yui Saikawa’s big stadium show, Kimizuka and Natsunagi struggle to protect her from a hidden assailant. But the further the two...

Siesta and Kimizuka investigate a series of murders by someone called Cerberus, who for some sinister reason steals victims’ hearts. As...

Siesta takes an extreme risk to stop Hel and her mutated terror-beast, and pays a price for her courage. The outcome halts the fight against SPES, at...

While Siesta convalesces, Alicia takes on the role of substitute detective and seeks the Eye of Sapphire, with Kimizuka’s assistance. When at...

Siesta has recovered and is eager to press forward with pursuing the serial killer and SPES. Alicia, however, insists on being involved, and as the...

In an attempt to rescue Alicia, Siesta, Kimizuka, and Char set off to confront Hel and SPES on their home ground. There, they encounter one alarming...

Saikawa, Natsunagi, and Kimizuka set off on a cruise together, during which Kimizuka unexpectedly encounters a former acquaintance. It turns out that...

Facing off against Chameleon with Natsunagi’s life on the line, Kimizuka finds that he is not alone in this battle, with help coming in...

Siesta, returned in spirit, partners with Kimizuka in a desperate battle against an ever-changing and resilient foe. In the aftermath of this battle,...