So he decided that he will send her away from himself for her security and he also with time started to make himself busy with his work bit he has never forget about her.
And now after so many years when he has finally found the little girl who has for once called him Big Brother made Gu Hong emotional suddenly.
He became very emotional that he didn't knew that tears started to form in his eyes.
Just like Li Weixiao, Gu Hong is also an orphan. Even though he has four Brothers of him but still he always felt that emptiness of a little sister who will be only his sister.
He always wanted a little sister for himself but his fate doesn't gave him that happiness and made him an orphan.
And when little Ling Xue in their first meeting when called him Big Brother he felt that his fate is not so cruel towards him and has given him a little sister finally.