In a room with white, reflective walls, illuminated by a cold, blinding light, a young man wakes up confused, with no idea where he is, why he’s there, or most importantly, who he is. Soon, however, a woman with enigmatic charm and an unusual appearance reveals a startling truth to him: his planet, Earth, has been conquered by the Sleter, an alien species that has transformed the world into a massive Game Arena. Right there, within its walls, he will have to fight, struggling not only to survive but also to uncover the secrets of his identity and the destiny that awaits him.