The Middle-aged Man who just Returned from Another World Melts his Fathercon Daughters with his Paternal Skill (Associated Names)

The strongest Hero in history, Nakamoto Keisuke. He was summoned to another world in the spring at the age of fifteen years old, and when he successfully defeated The Demon King, he was already thirty-two years old. He had finished his role in another world and returned to Japan, but the reality that had been…