Ayame Yomogawa

About

Ayame is the eldest daughter and heir of the Yomogawa family that governs Aragane Station. She is the user of the master key.

(Source: Koutetsujou no Kabaneri Wikia)

Anime

Supporting Kabaneri of the Iron Fortress

Supporting Kabaneri of the Iron Fortress: The Battle of Unato

Supporting Kabaneri of the Iron Fortress: Light That Gathers

Supporting Kabaneri of the Iron Fortress: Life The Burns

Manga

Main Koutetsujou no Kabaneri: Akatsuki