"Beware that, when fighting monsters, you yourself do not become a monster... for when you gaze long into the abyss. The abyss gazes also into you." This quote rings true in Touya's life. After losing his older sister, Touya Omega gets involved with the supernatural to bring her back. He faces issues involving relationships, drug abuse, suicide, and so much more. If he ever gets his sister back, will he be the same man?