It certainly has been a while since I've drawn Siwo Koshi, but I really like how this one came out.
Here we have the Yōkai finishing up with a recent 'master', leaving him so full that he'll be a road-block for the next day or so for any passerby. Before it was said whoever can drink through the night will become her master. In this case however, he drank, and drank... and drank. Koshi knows that her master would never drink so greedily, instead they would savor every cup. And so she travels back on her path.