When the protagonist was young, an accident made him the subject of a secret experiment. The experiment changed his body and destiny, but he successfully concealed this fact and lived an ordinary and low-key life. However, fate is always full of variables. A series of unexpected events broke the protagonist's peaceful life, forcing him to step out of the hidden shadows and face his past and future. In the process, the protagonist meets a like-minded brother. They have experienced the test of life and death together, fighting side by side against the forces of darkness. Their friendship continued to deepen during the battle and became each other's strongest support. Later, he discovered that the secrets about himself were far more complicated than he imagined, and he began to explore his abilities.
