Summary Eat Before You Go from Kainu Manga
Eat Before You Go summary: After 30 years in the other world and defeating the demon lord, Cheolho Kang finally returns to Earth-- only to find it overrun with monsters and hunters. Tired of endless battles, he opens a small restaurant and wishes to live in peace. With dishes to make and a baby dragon to raise, a heartwarming tale where every visitor brings a story is set to begin.