Mai, who works as a housekeeper for the Kimura family, is skilled at cleaning and laundry, but the only thing she's bad at is cooking. However, she cooks for the single-parent Kimura family with all her heart and soul every day... But one day, the husband eats Mai's cooking and is hospitalized with food poisoning. Hikaru, her son, who she never got along with, scolds Mai harshly and even plays with her body. Afterwards, Mai has her panties taken away and is ordered to "work without underwear from now on"...