I think it would be nice to see Tatsuya going to the USNA on a mission to help Lina. It would be refreshing to see Tatsuya infiltrating a foreign nation.
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"Now, let’s open the curtains on our play.
A hell fire banquet of fear and madness, where even the ashes will be burnt to nothing!" - One of 72 Demon Gods of Solomon, The Demon God Belial