Tena Fortissian
Tena is Kyousuke "mistress" and is a "Tuner". Tena's favourite food is dango, and also she seems to be very fond of tea. She assumed that Kyousuke is her "dog", and she likes to abuse him. But despite this, she is really care about Kyousuke, and later, she is in love with him. But Kyousuke consider Tena as a little sister.
Mangaography