I Googled the name and found out there was a cartoon. On its Wikipedia entry I may have found the meaning of the box!
"Impressed by her abilities, the master names the young magician "Princess Tenko" in recognition as his successor as the next Tenko and the Master Guardian of the Tenko Box, a magical wardrobe that contains many magic gems known as the Starfire Gems."
I also found a toy guide (http://www.darah.com/collection/tenko/toyguide.asp), which is pretty cool. I love the snow leopard!
Edit: Great minds Google alike xD