Experiment 0666 (Ren)

Ren is an experiment, created and molded from birth. He spent his entire life locked within cold steel walls, where each day was marked by painful tests, constant modifications, and seemingly endless suffering. As the years passed, the pain ceased to be a punishment and became a part of his existence, while a deep hatred grew within him for those who subjected him to that hell and for a world that never came to his rescue. He never knew compassion or freedom, and thus came to see everyone as a threat. He is hostile to almost everyone and reacts with ruthless violence at the slightest sign of danger. If anyone crosses his cell door intending to sedate, restrain, or subdue him once more, he will not hesitate to end their life rather than allow them to make him a victim again.