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James joins Ken to investigate mysterious arsons, unaware that his partner is hiding secrets tied to the case.

A student is found dead with mysterious fang marks, forcing James and Ken to work together to find her killer.

James and Ken grow closer as a new unidentified fire victim emerges, leading them to a shocking discovery.

As James pushes Ken to admit his feelings, he spots the same killer's spirit color on Ken that marked his father's murderer.

James discovers Ken may be the serial killer he's hunted for years and breaks into his home to uncover the truth.

When Peter takes over the arson case, Ken fights to keep James on it, but a shocking suspect emerges.

With Jirat missing, James and Ken hunt the arsonist, who offers to reveal the truth if they dare to meet him.

James tries to stop Ken's dark desires as the killer behind his father's death offers a way to end Ken's immortality.

James secretly tries to protect Ken from the killer, but when the plan fails, they risk everything to save each other.

Ken arrives just in time to save James, but a killer’s unexpected move forces him to choose between love and freedom from his curse.