Manga A-Rank Boukensha No Slow Life

He is a hero who has always pursued one simple goal - to kill the strongest creature, that is, the dragon. And he finally managed to fulfill this mission, the other day he destroyed the strongest dragon. However, he is now confused as he does not know what to do next. He lost all meaning in life. But suddenly, in a dream, he recalls the village in which he was in the distant past. She seems to be very cozy and sweet ...
Now he decides to find her in order to spend the rest of his days carefree there!