Such massive devastation may not seem typical to the Tsunami-kami-sama known today, but she has recently engaged in a minor fight with Tokimi-kami-sama, which destroyed almost a quarter of our galaxy (all damage was later repaired). It is known that, due to certain extreme circumstances, Tsunami-kami-sama was responsible for annihilating most - if not all - of an ancient civilization who existed before the Pre-cursor race. Little is known of Tsunami-kami-samas history before 150,000 years ago. The three Choushin are high-dimensional entities as opposed to our own three, there are 11 dimensions commonly known to exist within the Tenchi Muyo! OVA. They came to the conclusion that a more practical approach was needed. In fact, the sum total of creation was started by them after an unknown length of time spent trying to theorise the existence of such a being. Tsunami-kami-sama, along with her sisters Washu-kami-sama and Tokimi-kami-sama, were in existence before time and space began, and have spent billions of years working towards locating a certain individual, someone who was greater than they were - how they define 'greater' is a matter of conjecture - but what they would do then is unknown. The suffix of -kami-sama can be literely defined as "spirit lord/lady" and adding it to a name implies a superior divine connection while kami can mean "god", kami-sama means "God" (such as The Almighty, Kami-sama, in Oh My Goddess!). In fact, she has appeared in several different roles: As noted above, Tsunami appears as one of the three Choushin.