In a planet far, far away from Earth, there reigns a kingdom that overflows with smiles.
Princess Yuki is 12 years old and is beginning to feel the roller coaster of emotions that come with adolescence. Each day is a mixture of tears, laughter, and dare we say giddiness. Yet the palace is full of fun, with vassals who add color to her life. There's Laila the tutor, Izana the political advisor, Harold the Grand Master, and of course Joshua, a childhood friend and close aide.

"Yuki! As long as you have the will and passion, you can do anything!" says Joshua.
"Ugh. That again?! Joshua, you need to act more regal!" she replies.

Seventeen-year-old Stella is a brilliant warrior. Even though she is cool as a cucumber, she never fails to smile. That's because smiling is essential to life.

This is a story about two girls born in a distant planet.