[@Fenris123]If he would be fighting against the E.U. then I'm sure Sho would want nothing to do with him at that point due to his need for E.U. assistance, and he'd have no friends among W-1 at that point. If you move to Japan you should live as a police officer with no infractions that may lead to alienating the Japanese, and join Zero's Black Rebellion either after the JLF movement's is destroyed and they reveal themselves, or after the massacre incident and people join in mass. You should also include a reason why Japan is picked out of all places because as it stands you have an Irish, and Britannian heritage. Why would Japan be the place to go? Why not stay in Ireland, or go to the Britannian Homeland?

 If you don't like either why not China? Let's look at my character for a second: Jack's father had close connections with Nagamasa from Japan and sent his son there to keep him safe because he trusted Azai more than his fellow E.U. bureaucrats. He went back for a bit after the JLF but before the Black Rebellion, and served there as a soldier for a short time period but under the sanction as a political tool since he was his father's son. He's in W-1 because of his piloting skills, and the fact that he's relateable to the Japanese due to Azai's tutoring of him while there.