Confused Sister

Shanshan had never thought that her neighbor's brother, whom she had cared for since she was a child, would blush just by kissing her. It was so strange. She suppressed her curiosity and observed her brother. Wow, he is so handsome. How come he never noticed it? Haoxuan never thought that Li Shanshan would be so slow. She had never heard herself called sister, and she wanted to be her sister. She clearly liked herself, but she always thought it was her sister taking care of her younger brother. She didn't know what to do with this confused sister next door, and then she understood. Conception: