Isekai Travelers Are Non-Refundable

This morning I was a student, and by lunchtime I became the heiress of Baba Yaga. And here I stand in the hut on chicken legs, while across from me sits the hateful lout-next-door, a descendant of Koshchei. So what do we do now—how do we get out of this strange fairy-tale world? And how not to kill each other in the process… or fall in love?
From the author: a light, simple story to lift your mood.