After her father's remarriage, Sachi suddenly finds herself living alone with her new stepsister, Ayari, while their parents are away on a round-the-world honeymoon trip. Their interactions are awkward at first, but once food lover Sachi discovers Ayari's passion for cooking, the two quickly begin to bond over their shared love of good food. Includes: \- Chapter 1: Ham sandwich \- Chapter 2: Egg Fluffy \- Chapter 3: Negi Sausage \- Chapter 4: Midnight soup \- Chapter 5: Raclette \- Chapter 5.5: Extra