No Game No Life, Vol. 10 (light novel) — Yuu Kamiya

You can run, but you can't hide...After pulling off a successful coup d'état for the Elkian throne, Sora and Shiro take their devil-may-care attitude to running a pharmacy. One of their first customers is the leader of the eighth-ranked race, the Dwarves, who comes to blows with the two of them over the bill for his drugs and taunts, “Why did you run from your old world?”At the same time, the gamer siblings are saddled with a runaway Dwarf girl named Til…who also has a bone to pick with the Dwarf leader! With so much conflict at hand, will Sora and Shiro have time to run a business?!