Shinobu Saruwatari

Goh's younger brother who lives with Goh and Anna. Shinobu kids his older brother about his age and goes to school with Anna. Though he was once infatuated with Anna, he later refers to himself as her "big brother". He may have later developed close feelings for Shizuru, much to Kouji's chagrin but it is not definite. He later becomes the pilot of the Neo Diver.

from wikipedia