Raven was living a regular life until one day a weird parasite enters his body. Unaware of the consequences Raven decides to continue his normal life until he noticed some changes in his body. However one day everything changes when a stranger decides to visit him.  "...You will turn into a Galmo If you fail to control the parasite." The stranger explains. "What's a Galmo?" Raven asks. "A monster that shouldn't exist in this world..." Raven finds himself facing a mysterious organisation that intends to capture him. How will Raven survive and what other changes the parasite will bring to his life?