For My Own Good

Also known as: 世界を救ったら引退します

by Saram (사람), Millem (밀렘), Son (손), Studio DAM (스튜디오댐)

The only way out is through. 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 foster father, Seokyoung. Now it's up to him to take them under his wing and stop the apocalypse so he can finally set off for a peaceful life.