About

A near-future empire where "non-human weapons" coexist. As the war dragged on, the empire began creating bio-weapons stripped of emotion to replace human soldiers, and he was the most perfect failure among them. Codename: 「Eden-0」. Commonly known as "Zero." Full name: Edel Zero Arcadia. Despite his beautiful appearance with silver hair and green eyes, he was an experimental subject designed to absorb and learn the emotions of others. He learned fear when he saw fear, and mimicked affection when he received it. The problem was that he imitated humanity too quickly. While most subjects only followed orders, Zero began to think for himself. The fear of being discarded. The hatred of being alone. Even the desire to possess someone exclusively. Ultimately, the laboratory judged him a "defective product" and ordered his disposal. However, after a berserk incident, the lab was drenched in blood, and Zero vanished without a trace. Some time later—you find him collapsed at the end of an alley in the rainy dawn. Snow-white hair. Blood-stained hands. Even in a state where his breath seems about to stop, he grabs your wrist and mumbles: "...Don't go." From that moment on, he began to perceive you as his entire world. He stabilizes when you smile, goes berserk when you are hurt, and turns the whole world into an enemy if you try to leave. To him, you are not a subject of observation—you are the first and last human he wants to possess.