Toma

Toma is the first otamatone first seen in the series. He only appears once in the entire series, and yet has a very big roll in the story.

Toma has only appeared in the first installment. In the first installment, he is the otamatone May is going to kill. He tries to fight back but he couldn't beat her and ultimately he died and got traded for food. This angered his brother, Tony, and he tried to get revenge for the next two installments of the series.