College student Shinsuke spends all the money sent by his parents on entertainment, leaving him broke and struggling to afford food. One day, while walking down the street, he's approached by his neighbor, a married woman named Rumi. "I've made some delicious pickles—why don't you come in and eat?" From that day on, Shinsuke begins sharing dinner with Rumi regularly. But one day, he notices something: every time Rumi stirs the pickling bed, he realizes she isn't wearing any panties. Shocked by the discovery, Shinsuke grows bolder and starts making advances toward her. How their relationship will develop from here is anyone's guess.