Din no Monshou: Mahoushi Regis no Tenseitan

The hero is a Ronin who is undertaking an embarrassing job search when he is killed in an unfortunate accident. When he wakes up, he has been re-incarnated into a new world. "I'll never live a lazy life again." He tries to restart his new life with such determination. He is born to a fallen noble. How on earth will he manage? This is the story of a young man and his partner's struggles to save his home from downfall.

(Source: MU)