Keiichi has short, spiky and quite straight brown hair which reaches to his ears. He has blue-sea eyes.
Keiichi's personality has not been revealed so much, but what is known it that he seems to be soft spoken, polite and collected.
He is seen going to a café with Megumi where Tomoya works, but Tomoya mistook Keiichi for Megumi's boyfriend. However, Megumi cleared the misunderstanding afterwards.
- Keiichi's cousin. He calls her ''Megumi-chan''.