Masao Imaba or Vice-Admiral Masao was Hermes' mentor during the one year time skip and during Hermes' time in the Marines. Retrieved from "http://opwar.wikia.com/wiki/Masao_Imaba?oldid=8861" Ad blocker interference detected! Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.