Night Spirits are one of the eight Chaos Elemental spirits that all humans possess. Which one they possess depends on their personality.

Night Spirits have a personality like no other. They are creative, spacey, unique, emotional, freedom seeking, and paranoid. They have a different train of thought than most people, never able to quite fit in. They have been described as stars, that light up the dark, able to see the bright side of being in a life or death situation, for example. They would often do anything for freedom, often seeking a law free Location.

Night Spirits love fantasy, which is why they are sometimes attracted to the rebellious Fire Spirit who makes their own rules. But Night Spirits also usually have trouble fitting in, so they tend to seek the comfort of the tolerant Water Spirits.

Night Spirits are stronger in their element, tending to be stronger at night, especially on a clear, starry night. They are less likely to die at night or less likely to die by getting struck by a meteorite. Their spirit color is silver. Their spirit animal can be either a wolf, unicorn, raven, owl, or Pegasus.

Souce: Wikipedia