My friend's sister, who is very beautiful, sometimes visits his house and I see her occasionally, so I was aware of her... On this day, while we were playing games together, she entered the living room with an unusually friendly smile. Perhaps she was bored, she began to watch our match from the sofa behind us. While my heart was pounding, I glanced back... and to my surprise, she was smiling sweetly and watching us intently...!