K no Souretsu

When K, the resident of Room 301 in Building 67, passed away, his body was nowhere to be found. Despite the missing corpse, the other tenants remained convinced of his death and proceeded to hold a funeral in his memory. Amidst the mourning, an enigmatic newcomer named Mikaya suddenly arrived, declaring his intention to move into the deceased man's apartment. Driven to uncover the truth behind this bizarre and unsettling death, Mikaya begins interrogating the building's residents. Yet, as the puzzle pieces start falling apart, he comes to a chilling realization: something about this community is deeply, profoundly amiss.