Drunk Invader

What would happen if modern alcohol were brought to a world where the brewing technology was only at the level of medieval Europe? One day, Japan was able to travel between the two worlds. The government, wanting to acquire the vast land and resources of the other world, plots to rule the people of the other world not with "military force" but with modern "alcohol". Touji, a college student with an unrivaled love of alcohol, gets caught up in this plan. Will he be able to thwart the government's plan with his overwhelming knowledge and skills about alcohol?