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Explore the captivating world of These Demons Do it for Free, a web novel filled with magic, dark contracts, and revenge. Delving into the realms of demons and summoning magic, the story follows a male protagonist navigating power struggles and wishes in a thrilling narrative. With tags like Calm Protagonist, Clever Protagonist, and Weak to Strong, this novel offers a unique blend of genres including slice of life and shounen, promising an engaging read for fans of supernatural stories.