Urban Miracle Doctor: My Daughter Was Expelled, so I Bought a Kindergarten

The Protagonist Returns After Missing for Several Years to Provide for His Parents.

The protagonist disappeared because he accidentally entered another world or organization to cultivate immortality. Because his parents were still alive in the mortal world and unable to break through the realm, he decided to return home and enter the mortal world. It's better to be a daily drama, without pretentiousness or slap in the face, without being systematic.