Gu Yanci is "only special to the heroine" (for example, saying "Don't bother me" to the outside world, and saying to Su Wan, "Are you thirsty? I made hot milk for you"); Su Wan "uses gentleness to tease the boss" (such as painting Gu Yanci's sleeping face and handing hand warmers to him when he is tired); two-way protection (Gu Yanci protects Su Wan from being bullied in the workplace, and Su Wan cures Gu Yanci's loneliness).
