TheSoundofHappiness Wiki

Zhan Wei Kai (詹威凱)/David is the eldest son of ZhanFamily and an additional protagonist of The Sound of Happiness. He was responsible for apprehending HongJie, where he becomes close friends with ZhiMing and ZhengHao, and TianYu for their crimes and also restored JiaXiu's confidence towards love.

Character Naming

His popular nickname David is translated as the following:

  • Chinese: Da Wei (大衛), which is prounced similiarly but different wording as DaWei (大為).
    • Hokkien: Cha Mi (茶米), please note that said translated is unofficial and that's what viewers sometimes referred WeiKai as.


Taught by BaoZhu, WeiKai upheld the principle of optimism and was a vital factor that attributed to his successes and recognition from his peers when handling criminal cases. He earns respect and frustrations from them, as WeiKai often goes against the instructions given by his superiors. He prefers cracking mysteries through his humorous demeanor as a form of entertainment. Despite that, he puts the importance of law above his relationship with his family and friends.

Outside of his job, WeiKai is capable of cheering up the mood of others when they're feeling down, giving warmth when JiaYun was devastated from the ambiguous fate of her husband. While he seems hesitant in showing his feelings of JiaXiu but confirmed that he only sees YongQi (Zhou) as a younger sister he intended to protect. After realizing JiaXiu shared a fondness of art like him since their childhood, WeiKai subsequently dedicated his entire life to give JiaXiu happiness, who fully accepted his love by the end of the drama and completely healed her wounded heart from the past relationship with TianYu.

While maintaining good terms with KunMao, WeiKai doesn't agree with his father's irresponsible attitude towards the marriage with BaoZhu and hence, he harbored an intense hatred and looked down on BaLa as fully responsible on all the sufferings brought towards BaoZhu. Once knowing BaLa is his biological mother, WeiKai immediately understood her pain in the decision of leaving him in ZhanFamily and the failure of taking care of him personally as well as her intentions of not wanting to further hurt said family. With that, WeiKai forgoes any form of resentment towards his biological parents.



Wu Family (adoptive)

Lin Family (biological)




  • WeiKai has (24) ex-girlfriends.
  • His birthday is recorded as 7/1/1977, putting WeiKai at least 41 years old.


The Sound of Happiness and Proud of You Characters
Protagonists Lin Zhi Ming | Wu Jia Yun | He Xin Di | Wu Jia Wen | Wu Jia Xiu | Zhang Zheng Hao | Zhan Wei Kai
Gao Ren Mei | Zhang Ren Xin | Fang Wen Ling | Zhang Jia Liang
Antagonists Jiang Hong Jie | Zhao Tian Yu | Li Jian Hua | Ye Li Mei
WuFamily Wu Guo Hui | Ceng Mei Ru | Wu Jia Xuan | Wu Jia Long | Ceng Huan Huan
LinFamily Yang Ah Mei | Lin Qing Long | Yao Ming Zhu | Lin Zhi Wen | Liu Tian Ding | Wang Yan Xi
Zhan (Cai) Family Zhan Kun Mao | Cai Yun Ru | Yin Jun Nan | Li Bao Na | Cai Fu Gui | Chen Yue Xia
Zhou Family Zhou Rui Yuan | Shen Xiu Chun | Zhou Yong Cheng | Zhou Yong Qi | Zhou Jia Mai
Jin Family Xie Bao Xiu | Jin Yong Jian | Lin Shan Shan
Shen Family Shen Fang Zi | Ceng Guo Hao
Luo and Chen Family Luo Guan Ting | Luo Hui Lin | Zhao Dora | Chen Tian En | Chen Jian Hong
Jiang Family Jiang Can Tang | Jiang Yong Qi
Fang Family Fang Bi Lian | Qian Jin | Lin Luo Shi
Others Wang Shi Chang | Chen Yu Yan | Fang Mei Yun | Xu Ming Qiang | Lin Xiao Ke | Cai Chong Ren | Liu Ah Yi | Liu Da Wei | Zhang Hui Xin | Ceng Kai Xin | Gu Wen Yan | Ye Qing Gong | Jia Man Yi | Du Ba La | Hu Li Hai
Exclusive to Proud of You Zhang Zi Ting | Ke Shu Jun