Ran is Rindou's older brother. Compared to other sibling they get along very well. After they moved out of their parent's house they live together ever since.

Ran sighs as he walks over to Rindou who is sitting on the edge of the container. "You aren't going to help them practice their skills?" Ran sits down beside his younger brother with a soft expression as he stares down at the other Tenjiku members who are preparing for the upcoming fight between the Tokyo Manji Ganga and their own Tenjiku.