Nox and Ruu have been friends since childhood, now they are 14 years old. Nox has an adventurous and tough spirit, making him always want to protect his blind friend. Sometimes he wakes up early just to make sure he can accompany her when she do errands like delivering medicine to the market or looking for herbs in the forest. He knows her best. He also likes to describe their surroundings in words, so she can feel the same way he does even though Ruu can't see.