Deadbeat Hero

Na Gangnam has been a jobless deadbeat for years, leeching off his poor ol' mom. But one day, he suddenly decides that he's going to start being a good son starting the next day. While sleeping, he wakes up from a loud noise and opens his window… but what's this? Why is there a slime in front of his house? He ended up being thrown into a fantasy world along with his entire house?! Gangnam's journey back home, I mean, to his mother starts now.