Clis is a Toa of Water who stars in Neelh's epic, Heartbeats.
When she was a Matoran, Clis was a student at the Village of the Water, or as she and the other villages knew it as, Water Village. Almost nothing else is known, except her best friend was called Ree and she went to the yearly Elements Festival.
She became a Toa in the middle of a lesson, which she expresses as a bad thing. She was soon discovered by Gorast, who attacked her. She was saved by her friend Ree, and a Toa of Air called Furndos. She started to have strange visions, but then Ree then let slip about the Order of Mata Nui, and the Matoran left the two Toa.
Clis started to live in the forest with Furndos, and the two grew closer. They were soon rejoined by Ree.
Neelh has given each of her charecters in this story a theme song. Clis has 'My Immortal' by Evanesence and 'Keep Holding On' by Avril Lavigne.