Ryofuko-chan - S01

Ryofu Housen, the legendary warrior Lu Bu from the Three Kingdoms, and his strategist Chinkyuu unexpectedly find themselves transported to modern Earth-trapped in the bodies of elementary school kids. Now stuck as small, flat-chested children with an undying love for women, the two struggle to adjust to their bizarre new lives while searching for a way back home. Their journey is far from easy, filled with battles against monstrous foes, run-ins with past enemies, and one particularly overwhelming challenge: their relentless pursuit of their teacher Eri-sensei and her enormous F-cup chest.