Samurai Harem(2009)

Samurai Harem is an anime series following Yoichi, a young swordsman trained in traditional bushido for seventeen years in rural isolation. When his father declares his training complete, Yoichi is sent to continue his studies at a city dojo run by an old family friend. The transition from mountain life to urban living proves jarring enough, but Yoichi's real challenge emerges: he must live with his mentor's four beautiful daughters while enduring an unexpectedly grueling training regimen. Caught between mastering the way of the samurai and navigating the chaos of his new living situation, Yoichi discovers that discipline takes many forms. The series blends comedy with coming-of-age themes as the sheltered warrior adapts to a world far removed from everything he's ever known.