Rintarō Chihiro

Rintarō Chihiro was a member of Old Border.

Appearance
In the picture found by Osamu, Wakisaka appeared to be an "edgy" teenager with scruffy black hair, a dark colored sweater with black strikes with black jeans.

Personality
Not much is known about his personality.

Background
At a certain point in time before the start of the series, he joined Old Border. He later participated in the mission around five years ago which killed him and nine of his friends.

B-Rank Wars Arc
When asked by Osamu about the current whereabouts of the members of Old Border, Yuri points doesn't point out Chihiro as he was one of the ten who died.