C58 Natural birth of a pair

As for Jin Jian, he left Ji Yin's room, feeling a little annoyed. Was he being a little cruel to his senior sister like this, but then again, what was he going to do to her if not do this to her? Could it be that he had been hiding it all along, making her think that he was the eldest senior brother in her heart? Senior Sister could not continue acting like this. If she kept it a secret