Fluffy Ball, also called Houhou, is Ai Ling's system companion that appears as a small, fluffy creature resembling a hairy orangutan. It serves as an assassination guidance system, providing information about the Demon King and how to earn exchange points. Despite its cowardly nature (it flees at the first sign of danger), it lectures Ai Ling about professional ethics for Xi Slayers. Fluffy Ball can access a system shop where items can be redeemed using exchange points. After being tapped by He Xi, Fluffy Ball became unresponsive and silent, which distressed Ai Ling as it was her only companion. It has a smug personality and boasts about knowing everything in the universe. Fluffy Ball was happy when Ai Ling wanted to go to the Demon King's Cave because its primary job as an assassination guidance system would finally progress.
