Ran is a small girl with teal-colored eyes and dark olive-green hair, tied in two small pigtails with some of her hair let out.
Based on what has been seen, she seems to have characteristics befitting her age. She often argues with her brother Ren. She also refers to herself in third-person, which is common for young girls in Japan.
Ran and Makoto have a good relationship with one another as Makoto looks out for her like a big brother should do. She respects and listens to what he has to say, especially when it comes to fighting with Ren.
- "You never finish your food!"
- "(Giggles) Piggy back ride! (more giggles) (...) And I thought we might be on time for something."
- "Will we be racing against you guys? (...) I can do freestyle with a kick board!"