Yoon Si-yoon's mother attended her middle school graduation ceremony. On the January 25th broadcast of SBS variety show "My Ugly Duckling," Yoon Si-yoon attended his mother's graduation ceremony. His mother received her diploma from the Korea Broadcasting and Communication High School after 44 years.

Yoon Si-yoon's mother had previously given up on graduating middle school just three months before completion due to difficult circumstances. On the show, Yoon Si-yoon celebrated his mother's graduation and shared the special moment. Shin Dong-yup said, "After watching the last episode, I became a fan of Yoon Si-yoon. His mother is really amazing."

At the graduation ceremony, Yoon Si-yoon's mother did not specifically reveal that her son is a celebrity. She said, "Because my son is a celebrity, I was worried. If it were just about me, it wouldn't matter, but usually when other parents come out, their credentials are shown. I was worried about how others would see my son when they see a parent who didn't even graduate middle school."

At the ceremony, Yoon Si-yoon shared his thoughts on marriage in response to a friend's question. He said, "I also want to get married soon." Yoon Si-yoon's mother mentioned that a classmate who is 10 years older than her son has grandchildren and confessed, "If you have grandchildren, I'm ready to take care of them. I even got a babysitter certification." Yoon Si-yoon expressed surprise, saying, "Why did you study that secretly? You have a babysitter certification?" His mother explained, "You never know when or how it might be useful, so I study whatever I can."

Looking at the last name on his mother's graduation list, Yoon Si-yoon wondered, "I'm curious about how little my mom studied. I wonder if the order on the graduation list is based on grades." Shin Dong-yup laughed and said, "It's the Heo family name."

Classmates who attended the graduation ceremony emphasized, "Your mother is in the top 1%," praising Yoon Si-yoon's mother. Her report card included perfect scores of 100 in Korean, Ethics, and English, which impressed everyone.

Yoon Si-yoon created special memories by taking graduation photos with his mother and her classmates. This broadcast captured a precious family moment and moved viewers. Yoon Si-yoon's mother marked a new milestone by graduating middle school and announced a new beginning.