Killed Again, Mr. Detective.

Sakuya Otsuki, the son of a renowned detective, is determined to carve out his own legacy in the world of sleuthing, aided by his loyal assistant, Lilithea. However, unlike typical high school investigators, Sakuya has an unusual knack for becoming a murder victim in every case he tackles. His latest challenge takes him aboard a luxurious cruise ship, where he once again meets an untimely demise.

Yet, this isn't the end for Sakuya. Each time he meets his fate, he awakens to find Lilithea by his side, ready to assist him in unraveling the mysteries surrounding his death. Together, they dive deeper into a web of intrigue, as Sakuya strives to piece together the clues and confront the chilling realities of his situation, all while navigating the complexities of their unique relationship.