Kayan served as a whetstone for the male protagonist to become a suitable hero. However, the male leads he encountered lacked motivation, even when he challenged them. Kayan changed his approach by bonding with them before betraying them, making them into powerful protagonists. Satisfied with his work, Kayan moved on to the next world without fear of retribution. Or so he thought. After completing all his missions, the System informed him that he must return to each world and survive for ten years to fully clear his task. Kayan was taken aback by this unexpected news, expressing his frustration with colorful language.
