GATE: Making my mark in this other world!

After the day of the hunt in Special Region, A very drunk Kobayashi finds a dragon named Tohru and takes her in to stay at her friends house. Only to find out that she didn't come alone, And has her friends stay with them as well. But when it looks like all is well, A gate appears in the city and all hell breaks loose. It looks like things won't be normal at all.