Rebirth・redead summary:

I, who had lost everything and tried to commit suicide, had my heart stolen and became 'immortal.' Encountering the supernatural and having my heart stolen, I, the protagonist Tachibana Meguru, begin working at the supernatural countermeasures organization known as the Public Safety Section Zero. This is a tale of the supernatural until I reclaim 'death. - Sypnosis from SilasMeanQuite.