After a Gate opened, Lee Kang-jun was transported to another world. Over 50 years, he conquered the vast Anux Continent, rising as Emperor and reigning as an Absolute Being. As a 9th-Circle Necromancer, he hunted Dragons, traversed other dimensions to sweep clean the Demon Realm of its fiends, and even ventured into the Murim to defeat the Heavenly Demon and the Murim Alliance Leader. After centuries of searching for a path back to Earth, he finally managed to return after more than 300 years... Only for his sister to thrust a plump, warm creature into his arms. “She’s your daughter. Her mother died during childbirth... do you happen to remember her?” “Papa—!” ...The thing is, the event happened before he even conquered the Anux Continent—over 300 years ago... “...Yes, yes, you were some incredibly powerful Emperor of a continent, right? You were trapped in a Gate for three years, so it's a relief you're only suffering from delusions.” Even if she is his only sister, she is presumptuously treating him like a lunatic. The only statement he cannot disagree with is: “But she is your daughter, so you have to treat her well.” He had already planned to quietly enjoy a peaceful, ordinary life upon returning to Earth. From now on, as the Absolute Being, he will dedicate his full power to laying a path of flowers for his daughter, Seol-ah.