It looked good to me! I am quite curious as to why this character agreed to help Higashi Village, since he despises Japan so much. You'll have to come up with a good reason.
(Also, I was thinking, one extra motive he'll have later is that he'll finally see at least some of the other group members as friends that he wants to protect.)
"And the peace of God, which surpasses all understanding, will guard your hearts and your minds in Christ Jesus." Philippians 4:7
John 14:27 Peace I leave with you; my peace I give you. I do not give to you as the world gives. Do not let your hearts be troubled and do not be afraid.
Maybe there could be an NPC villager who can be a translator, at least at the beginning.
John 14:27 Peace I leave with you; my peace I give you. I do not give to you as the world gives. Do not let your hearts be troubled and do not be afraid.