Where is the spy of the TV series "Opponent"?

In Opponent, Guo Jingfei plays Li Tang, a spy from Taiwan Province who was left on the mainland 18 years ago. He hid in the street with his wife Ding Meixi, who was also a spy. Tang Li drives a taxi and Ding Meixi is a middle school teacher.

"Rival" Guo Jingfei is an overseas spy, code-named Taoyuan. Good at all kinds of vehicle-related skills, proficient in four languages, like to write poems, not like to talk. He and Tan Zhuo are both partners and husband and wife. Li Tang played by Guo Jingfei is a taxi driver. In fact, his real identity is an overseas spy living in China. He stayed 18 years. For many years, Li Tang never gave up his spy mission.

Plot introduction:

"Opponent" tells a story: Li Tang (code name "Taoyuan") played by Guo Jingfei and Ding Meixi (code name "Hualien") played by Tan Zhuo were spies sent from abroad to kidnap missile expert Huang Deming 18 years ago. However, due to the death of Huang Deming, their task failed, and they had an accident when they returned to China by boat, so they had no choice but to stay in the mainland and finish the organization.

During this 18 year, they got married, had children and worked and lived normally according to the arrangement of the organization. When there is no task, the two are short and trivial parents, worried about their adolescent daughter's rebellion; Upon receiving the task, Li Tang changed from a taxi driver to a cold-faced spy, and Ding Meixi changed from a Chinese teacher to an affectionate spy. The two men joined hands to eavesdrop, get approval and steal documents, which can be said to be seamless.