At first, Gu Ran chose to ignore the girl living in his house and had a vicious tongue. As they got along, he felt that it would be nice to have such a sister, but later on he wanted more and more, not just a "brother and sister" relationship between the two of them.
Lu Yao: "Why does it feel like he has changed into a different person? I really wonder if it is my imagination."
Gu Ran: "Yes, I have fallen in love with you."
Intention: Gradually fall in love and stay together for a lifetime