Phase-D: Shirokage no Shou

Second chapter in the four-volume Phase D sci-fi visual novel series. There are four phases of human existence. From conception to birth is called Phase A. From birth to death is called Phase B. From death to disappearance of the corpse is Phase C. And last, remnant after the death, separate from the corpse, is referred to as Phase D. Protagonist in this chapter is a man called Yukito who lost his left arm in a car accident. But he started feeling severe phantom limb pain. As he cried for help in his mind, he heard a female voice in his head telling him to extend his new hand if he wants the pain to stop.

[from MobyGames]