Male lead's name: Lian Jiuchen. Recommended synopsis: Once boundaries are broken, a six-year relationship is severed. When emotions cross the line, he turns around and never looks back. Synopsis: Lian Jiuchen is the technical director of an AI company, who has been in a relationship with his girlfriend Bai Ningbing for six years. Upon returning home early, he catches her in a moment with blurred boundaries with a childhood friend. Due to childhood family trauma, he has zero tolerance for emotional boundary-crossing; on the spot, he proposes a breakup, resigns from his position, and completely vanishes from her world. Bai Ningbing wakes up to reality, puts down her pride to pursue him thousands of miles away, while Zhong Qing, the close friend who has silently guarded Lian Jiuchen all along, has long harbored feelings kept hidden for years.