Ep. 4: Cheng Xiaoshi delivers final messages regarding the basketball court and an impending earthquake.

Following the basketball match, Cheng Xiaoshi proceeds with his mission after Lu Guang confirms the historical node remains unchanged. Cheng discovers the team captain advocated for preserving the court, while the coach hesitates to reveal its demolition. Cheng transports the captain home, where they meet his sister, and the trio returns together. Later, Cheng walks with the sister to deliver a second message. Upon returning home and resolving a conflict with Chen’s mother, Cheng completes the final message. He then realizes the mission targets a traumatic memory involving an earthquake destined to kill Chen’s friends and family.

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