Teko

Teko (テコ, Teko) was originally the pet of Nagu, but now he is the pet of Arata Hinohara.

History
Originally a pet of the child shou Nagu, Teko was handed over to Arata Hinohara after he [Nagu] submitted to Hinohara.

Trivia

 * Teko can only say 'kuu'.