After the war of liberation, in which she plays a major role, Yoko eschews taking part in politics at Kamina City. Desiring to distance herself from her warrior past, she takes the name "Yomako" and moves to remote Koreha Island. There, she accepts the job of teacher at that island's elementary school. However, after learning of events occurring at Kamina City, and being attacked by two gunmen she temporarily leaves the island and breaks into Rinkane Jail to release Simon. After leaving the prison with Boota, Simon and Viral, she joins other members of Team Dai-Gurren and pilots the Dayakkaiser to pursue the war against the Anti-Spirals.