Reborn as a Vending Machine, I Now Wander the Dungeon, Vol. 3 (light novel) - Kato Hirukuma

I actually beat the lord of the Labyrinth stratum! This vending machine''s not doing too bad for himself, huh? However, an increase in notoriety means an increase in requests. To name a few, we''ve got mapmaking, monster hunting, and...getting loaned out to the winner of an eating contest?!"Boxxo is all mine for the whole day!"...I guess I''ve got a date with Shui and her bottomless pit of a stomach. I''m up to the challenge, though. I just hope her boundless gluttony doesn''t exhaust all the food (and points) I have!