Wadachi

(from ebookjapan):
This SF fantasy depicts a poor, dull ronin named Wadachi (Wadachi Yamamoto) who is forced to relocate to a new planet called "Daichi Earth" to make a strong living. Wadachi is working part-time pulling a food stall when he is hit by a car and injured, and all the money he had hidden in his room is stolen. Wadachi, now penniless, tries to earn money again when Sado Sakazo, a professor at an art university research institute, arrives at the oden stall where he is working.......?