Subaru is summoned to a fantasy world... with no special powers except "Return by Death." Every time he dies, he resets to a checkpoint, remembering all the pain. This deconstructs the isekai genre. It asks: "Would you still love the heroine after watching her die 10 times?" The psychological torture is intense.
If you liked watching Chainsaw Man ( Chainsaw Man Anime ) , I'd highly recommend reading the manga too. Chainsaw Man The Promised Neverland
Creating a vast, interconnected map where every island or "arc" contributes to a larger mystery. Dark Fantasy Attack on Titan , Berserk