Light
Shine
You see a triceratops in the distance. But, it's odd. It's perfectly pi shaped (that is, circular, like a pie). Some kind of piceratops, if you will. The reason they are this shape is because they want to absorb as much light as possible. They evolved to be round so they don't have any corners casting a shadow.
こう
ひかり, ひか
None
As you watch this majestic beast absorbing light, suddenly several dozen feral こういちs burst out from the wilderness, spears in hand. Oh no! Those こういちs are hunting this rare piceratops!