On the occasion of my brother's wedding, I went back to my hometown to meet his future wife's family. Surprisingly, my future sister-in-law was my first love from high school. Seeing my confusion, she deliberately brought up old stories, making me worry that my brother would find out about our old relationship. After the meeting, I went to my room and was lost in thought. At this time, she suddenly appeared, reminding me of our unfinished youth memories.