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. 
Contrasting her hatred towards boys, Tenko likes other girls much more. During dangerous situations, she recklessly rushes to protect all the girls, and only them. She also gets very shy and humorously humble if a girl compliments her looks, blushing strongly and insisting that her looks definitely aren't good. She appears attracted to girls and is especially fond of idols, often having dreams about them, and dreaming of becoming a "pampered celebrity" herself. Himiko is her favorite, and she often admires, wishes to accompany and fusses over her, which annoys the magician. Even though she repeatedly accuses boys of being perverted, she herself is occasionally shown to be a bit perverted while thinking about Himiko, though she claims that her feelings for her are only pure and nothing like the way males think. However, Tenko is also shown to act embarrassed and panicky if Himiko points out her possible attraction to girls, and she seems to be shy about telling Himiko about it.