Lovers Eventually Become Brothers and Sisters

I wish lovers will eventually become brothers and sisters. "What? I didn't hear clearly. What did you say you were to me?" "Your sister!" "Without swearing." "I am really your sister!" "What are you my sister?" "Stop joking!" Qin Tian was dumbfounded for a moment. His girlfriend who he had been in love with for many years turned out to be his long-lost sister. He turned around and pointed his middle finger at the top of his head, cursing in his heart, God is playing tricks on me! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.