The Hero Who Returned Remains the Strongest in the Modern World
Morishita Taiju was transported into another world and became a hero, after wonderfully defeating the Demon Lord, he has returned to Japan. He was satisfied with his peaceful days as he hid his power, but... Hidden yokai and people with powers start to rampage, and the (rare nowadays) academy power battle-ish hidden world unfolds!! And Now He Trains Beautiful Warriors Using Superpowers!?
이세계 귀환 용사가 현대최강! ~이능 배틀계 미소녀를 엄격하게 조교하게 됐다!?, 異世界帰りの勇者が現代最強！, 異世界帰りの勇者が現代最強! 異能バトル系美少女をビシバシ調教することに!?, Вернувшийся герой остаётся сильнейшим и в своём мире, The Hero Who Returned Remains the Strongest in the Modern World, Isekai Kaeri no Yuusha ga Gendai Saikyou! Inou Battle-kei Bishoujo o Bishibashi Choukyou Suru Koto ni!?, The Isekai Returnee is Too OP for the Modern World