Chihou Kishi Hans no Junan

Former exemplary knight Hans was transferred to a small knight station in a rural town. Despite his many achievements, he hated the hustle and bustle of the imperial capital, and he was enjoying his quiet and peaceful life at his regional knight station. Then one day, Japanese people with superhuman abilities suddenly appeared from another world...! Former exemplary knight Hans is at the mercy of unbelievable Japanese people in this isekai knight station fantasy!

(Source: Alpha Manga)