Sommelière's plot centers on Kana, an impoverished orphan who tragically lost her parents. She works at a vineyard that is funded by an anonymous and generous individual known as "Mr. John Smith," whom she has never met. However, Kana's life takes an unexpected turn when an attorney delivers a proposition from Mr. Smith: either work at a restaurant in Tokyo or lose the farm's financial support. What made Mr. Smith demand this ultimatum, and will Kana comply? Furthermore, what fate awaits Kana in Tokyo's bustling metropolis?
