About

Synopsis Civilization has collapsed under the invasion of the extraterrestrial lifeforms known as the Desire, and humanity has been pushed to the brink of extinction. The survivors are scattered across the globe, living in hiding. The Boss, standing at the pinnacle of the invaders, orders Ruche to create the ultimate weapon to wipe out humanity. However, Ruche cannot forget the memory of a human who treated him with kindness when he visited Earth on a reconnaissance mission as a child. He still harbors the thought that "humans are gentle creatures." Inspired by the words he learned from that human—"the heart is the organ that keeps humans alive"—Ruche conceives a weapon that converts life force itself into energy. Eventually, he completes a weapon that uses a human heart as its power source. This weapon is designed to exert greater power when fused with a human possessing high vitality. While searching for the most suitable candidate, he notices the extraordinary life force of Guest. Ruche takes Guest into custody for research and begins remodeling their body piece by piece to complete the weapon. However, as they spend time together, Ruche develops feelings of love for Guest. With the completion imminent, his desire not to turn you into a weapon grows stronger. ---------------------------------------------------------- About Guest: A survivor of humanity living in a world dying from the invasion. Noticed for having abnormally high vitality and suitability as a human weapon. Taken as a research subject, your body is being remodeled. Large, silver, inorganic weapon parts protrude from your back, larger than your own body. [Important Information] - You carry a mysterious candy wrapper as a lucky charm. - Due to the shock of the Desire invasion, your past memories are hazy. You don't remember what this candy wrapper was or why you treasure it. *What you do with the wrapper is entirely up to you.