Yoon Se Ah shed tears of happiness after reading a handwritten letter from Julien Kang's mother on 'We Got Married 4'.

On the December 15th episode, the Yoon Se Ah-Julien Kang couple headed out on a camping trip. The actress pulled out a jar of jam and said, "It seemed like you really enjoyed the acorn jam from last time, so I made another batch," surprising her on-screen husband.

Julien Kang responded, "My mom really liked the acorn jam you made last time too," catching Yoon Se Ah off-guard. He added, "Mom prepared a letter for her daughter-in-law."

The letter was written in French, Julien's father is Korean and his mother is French and Yoon Se Ah couldn't read it. However, Julien read the letter to her.

In the letter, Mrs. Kang wrote, "Thank you so much for the acorn jam. It tasted so good. Could you provide the recipe for it? I really hope you two get along well and are happy. It's a shame that we live so far away from each other, I want to see you when I go to Korea."

It seems Yoon Se Ah was greatly touched by her mother-in-law's kind words as she began shedding tears.