The nian is inherently fearful of loud noises, fire, and the color red. It will not choose to move toward any red object or any fiery or burning materials. If presented forcefully with a red object, flame, or if it is dealt fire or thunder damage, the nian must succeed on a DC 13 Wisdom saving throw or become frightened until the end of its next turn. After it has been frightened by a specific red object or a particular source of noise (such as clanging a weapon on a shield) or fire (such as the burning hands spell), the nian can't be frightened by that same source again for 24 hours.