In the preview feature for The Oath of Love (余生,请多指教), Xiao Zhan opened up about the rare moments when he deeply connected with his character Gu Wei. He shared that there was a time when his lack of confidence made him question himself, asking, “Can you really do this?” He also described the scene where Gu Wei hides in the bathroom and loses control of his emotions after surgery as the moment when he “first formed a strong connection and resonance with the character.” Through this reflection, many viewers were able to witness Xiao Zhan’s genuine journey of growth as an actor who did not come from a traditional acting background.
Key Content from the Preview Feature
The preview mainly focused on two aspects:
1. Xiao Zhan’s Interpretation of Gu Wei’s Character
Gu Wei is a professional and responsible surgeon who strives for perfection in his work and treats his patients with care and compassion. However, beneath his calm exterior, he carries “deeply rooted obsessions and struggles that he cannot easily let go of.” He tends to protect himself by keeping his emotions hidden.
Xiao Zhan described Gu Wei’s transformation this way:
“The shield he used to defend himself against the world gradually became a gentle umbrella that protected others.”
The process of learning to reconcile with himself is also an important part of Gu Wei’s character development.
2. Xiao Zhan Performs The Luckiest of Lucky (最幸运的幸运)
Several scenes from the preview feature Xiao Zhan delivering an emotional performance of The Luckiest of Lucky. The song’s lyrics, including the sentiment of “waiting for you for the rest of my life,” echo the themes of love and devotion found throughout the drama.
Behind-the-Scenes Footage
In the behind-the-scenes footage from the preview feature, viewers can see Xiao Zhan seriously preparing for his role as a doctor. He carefully studied medical knowledge, deeply analyzed his character’s lines, and paid close attention to every movement and detail.
Footage shows him learning medical terms such as “lymph node enlargement” and “intestinal obstruction,” as well as practicing simulated surgical procedures. These moments highlight the professional preparation and dedication he put into portraying Gu Wei as a believable medical professional.
Exploring Gu Wei’s Personality
During an interactive segment related to the preview, Xiao Zhan was asked how Gu Wei and he himself would react if their partner’s friend picked up food for them.
Speaking from Gu Wei’s perspective, he said he would respond in a slightly playful and “scheming” way by asking:
“Is it good?”
However, speaking as himself, Xiao Zhan said he would simply “take the food away directly.”
This comparison gave fans a clear glimpse into the differences between Xiao Zhan’s own personality and that of his character Gu Wei.

