Gu An's biological father who abandoned her when she was young. He appeared at a milk tea shop with his new daughter, showing indulgent affection toward the girl. Gu An hadn't seen him in over a decade, though he sent her monthly living expenses. His voice triggered painful memories for Gu An of his neglectful words like 'Cry again, and Daddy won't want you!' and 'Go stay with Grandma for a while.'