my sister has a tomboyish and assertive personality. she's also athletic, and i've always lost to her since i was a kid. but suddenly, an arranged marriage story came up for such a sister, and the story progressed smoothly in no time. i'm going to leave home soon. on the other hand, i also got a job around this time, and my mother, filled with gratitude and blessing, splurged her savings and planned a hot spring trip. it was a small gift to celebrate the children leaving the nest. my mother doesn't know that. my sister's hidden feelings and my trembling heart. and then, the two-day trip that will be our last family trip began quietly.