Yoko Aoba is a character in "Daiakuji - The Xena Buster" associated with the Service Youth Group. She intervenes to rescue the protagonist Yamamoto Akuji after he is severely beaten and expelled from his family group, the Wakame-gumi. Yoko Aoba's actions directly facilitate Akuji's takeover of the Service Youth Group, enabling his campaign to reclaim control of Wakame-gumi territory.