Lurking Voice

Mamoru Okajima, 25, is a company employee who moved to Tokyo for university and stayed for work. One night during overtime, a senior colleague tells him a ghost story: strange moaning sounds come from another floor of their office building. Mamoru finds it unimpressive and unrelated to them, and his colleague agrees. The night passes without incident. On his way home, Mamoru remembers his high school friend Kodai Nakano, an occult enthusiast who avoids full-time work to investigate ghost storie