Also known as For My Own Good · I Will Save the World And Then Retire · Me jubilaré después de salvar el mundo · 세상만 구하고 은퇴하겠습니다
In the midst of a disastrous monster attack fated to end the world, a strange device throws Heejae back in time 20 years, where he meets the students of his fos...
30 Years Have Passed Since the Prologue 
A Barbarian from the Medieval Era 
A Cadet Becomes a Prophet?! 
A Corporate Underling Who Excels at Work 
A Dragonslayer’s Peerless Regression 
A Former S-rank Adventurer Who Was Betrayed By His Griends Because He Was Too Strong Wants to Live a Slow Life in The Countryside 
A Hero Who is Good at Everything 
A Modern Man Who Got Transmigrated Into the Murim World 
A Pig-Slaughtering Knife Cutting Through All Realms — Makes Sense, Right? 
A Rogue Guard in a Medieval Fantasy 
A Villain’s Will to Survive 
A Wimp’s Strategy Guide to Conquer the Tower