The Middle-aged Man Who Just Returned From Another World Melts His Fathercon Daughters With His Paternal SkillIsekai-gaeri no Ossan wa Fusei Skill de Fathercon Musume-tachi o Torotoro ni; 異世界帰りのおっさんは父性スキルでファザコン娘達をトロトロに; The Middle-Aged Man Who Just Returned from Another World Melts His Fathercon Daughters with His Paternal Skill; The Skill of Paternity; 이세계에서 돌아온 아재는 부성 스킬로 파더콘 여자애들을 헤롱헤롱하게; 原勇者大叔与粘人的女儿们

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 waiting for him was, “Middle school graduate with seventeen years of blank period” label. He couldn’t find a decent job and had no choice but to spend his days working part-time.