She's protecting the male lead

There were many women in the Gu family, and they all had different personalities, but they had something in common. Needless to say, Gu shouxin usually observed them.

In the past, he did not understand the saying that a woman's heart was unfathomable, but now he felt that he did.

……

"Sisters, you're finally back! I've missed you guys so much!" As soon as they arrived at third aunt's house, Huo Yanyu ran over and gave each of them a hug, as if she was the master of the house.

"Miss Huo, have you eaten? Did you win the Mahjong game?" Gu Xin asked.

"Sister Xin, don't call me that. I'm going to be your sister, so I want to have the same name as you. Yanyan? Yuyu?" Huo Yanyu held Gu Xin's arm as she named herself.

"Miss Huo, there's a core at the bottom of our names, but your misty rain doesn't!" Gu Nian laughed.