Akihito Kuze, once known for his radiant smile, now dwells in his parents' manor where shadows lurk, and mystery shrouds his home. Gotaro Sumeragi, a dashing patrol officer, is tasked with uncovering the secrets within the manor, aided by his cunning Superior Officer who orchestrates Gotaro's residency within the Kuze estate. As Gotaro settles in, living in close proximity to his target, Akihito, will his mission prove smoother or entangle him further in complexities? Amidst this living arrangement, will Gotaro unravel the enigma surrounding Akihito and perhaps ignite the return of his lost smile?