The Beast King's Substitute Bride

Sylvain, a cursed white fox prince looked down on for his lowly bloodline and his humble healing magic, is pushed by his stepsister Blair into taking her place as the sacrifice offered to the Beast King. The household expects him to be dead within days, but the ruthless Axel instead declares him his one and only queen. Axel believes Sylvain is the mysterious fox who once rescued him in the Dark Forest, though he lacks any proof. Caught between the king's smothering possessiveness and the quiet devotion of Lance, his loyal knight from childhood, Sylvain works hard to keep his secret hidden.