HUNTB-559 My best friend from the past is now a flight attendant.

My favorite childhood friend. I hadn't seen him for a while as I grew up. One day, a childhood friend of a sister came back to her parents' house after a long absence. While talking about the old days, I still remember that I had always liked my sister. I couldn't control my feelings, so at least for the past few hours, I wanted you to be my only sister like you used to be. My sister, who was initially confused, gradually began to feel...