Cai and He appeared together in the 27th episode. Cai Hehe is one of the protagonists in the TV series "The Next Stop is Happiness". He is He's twin brother, an associate professor at the university. He firmly believes that the emission and dissipation of phenylethylamine is periodic, and the Dance Academy is extremely protective of his twin sisters, so he is called "central air conditioning" by his friends.

The TV series "Next Stop is Happiness" tells the story of how the 32-year-old successful female elite in Shanghai international metropolis overcame the pressure of work and life and grew up in feelings, friendship and love.

The next stop is Happiness. As a life drama focusing on the growth of ordinary people, it does not limit its perspective to marriage and love. In addition to the older youth's views on spouse selection and brother-sister love, the play also comprehensively discusses the current situation of young people's real life, such as workplace anxiety, dink marriage and housewife's dilemma, and truly and delicately depicts the contemporary youth's views on marriage and love and multiple choices.

Different from previous love dramas, why do the representatives of "Older Women" resonate with the audience through their own experiences, break the public prejudice and courageously convey positive energy to the audience and society? In the face of love, age is never a problem, and everyone's pursuit of happiness is equal.