If the Yubei orange is a sweet orange that grows freely in the north,
Then he is the bitter and restrained Ku Zhi from the north.
Yu Beiju brought light to his dark life
He always remembered the light in Yu Beiju's eyes when they first met
She also always remembered the sinister look in Jiang Cheng's eyes when they first met.
"Yu Beiju, your light will always be there"
Purpose: redemption