senpai-san_(douki-chan)
Real name: Okuzumi Maiko
An office lady who appears in ]]'s comic Douki-kun during their university days.
Older sister of [[Okuzumi Yuiko">Ganbare Douki-chan. She was the senpai of Douki-kun during their university days.
Older sister of [[Okuzumi Yuiko from Miru Tights (another Yomu series).