Io Naruko

Io Naruko (鳴子 硫黄, Naruko Io) is a second year student at Binan High School. He transforms into Battle Lover Sulfur.

Appearance
Io has short, pale green hair with straight, choppy bangs and gray eyes.

His school uniform consists of a white, button down shirt, a dark red tie, and a black blazer with white buttons and trim. The school's insignia is on the left sleeve. He wears black slacks and a brown belt, and brown loafers.