This is Drake Sterling, a.k.a the Gemini. He has the ability to create a shadow clone that is an exact copy of himself. It has the same thoughts as him when it is formed, so it instantly understands its task. After using this ability in his everyday life, he gets isekaid to a dark fantasy world, where he must see his mind and strength to survive the horrors of the world. Manga in the making... hopefully ;) CREDITS: Song - Shadowborn by Sawano Hiroyuki Art by me