DxD: I know…I'm not the real one,just a cheap copy. but...I'd win Novel

Upon finishing the DxD saga, a devoted Warhammer 40K fan meets an unexpected demise, only to be reborn as Lord Sanguinius—a celestial warrior banished from heaven itself. Mysteriously bound to an interdimensional discussion group system, he faces an unsettling truth: he is but a member among countless others, not the one in control. Forever marked as a copy, not the original, he nevertheless harbors an indomitable will to transcend his limitations and claim ultimate triumph. This fantasy adventure fuses reincarnation mechanics, action-packed celestial warfare, and harem elements as our protagonist navigates a reality far stranger than any fiction he once cherished.