Su Yichen is merely a substitute canary kept by Gu Hanzhou, he endures silently while Gu Hanzhou pines for the unattainable White Moonlight, Pei Suyue. In an unexpected turn of events, the White Moonlight returned to the country earlier than expected and even stayed at the Big Boss’ house.
The very first day he moved in, the White Moonlight said to the Substitute: “Susu, Leave Gu Hanzhou and come with me!”
