Tenko is voiced by Julie Ann Taylor

Tenko has a fair skin tone, warm green eyes and long dark-brown hair put into two long, loose braids. Her hair is tied by long white ribbons, a large green pinwheel bow with a white floral pattern and she also wears a purple, alice headband with a star-shaped adornment on the left side of her head.

Tenko is an incredibly noisy and generally cheerful person. She wears her emotions on her sleeve and has the habit of yelling out in a loud voice to show her fighting spirit. She suffers from overactivity and anger issues and directs her energy into her Neo Aikido. Even still, she claims that she is much calmer when compared to her childhood. She has also described herself as being "not very good at thinking" and appears quite gullible and very impulsive, using her emotions over logic. She refers to herself in the third person in the Japanese version.