According to Kim So Yeon, she met Bada at a radio station when they were 20 yrs old. Bada said to her "we're the same age so lets be friends" and they switched #. And they've stayed best-friends since that days. So on this episode, Bada made a surprise appearing on the show to talk about her best friend, Kim so Yeon. (its cute how Taeyeon was so excited when she sees Bada hehehe) Anyway..Bada told a story of how she first met Kim So Yeon and So Yeon had this hairstyle that covered her face so during that time, Bada thought that So Yeon has a scar on her face. LOL. And also one time when they wanted to up to have jajangmyun together, Bada had to come up with a plan to get out of her accommodation (She said because she was an S.E.S.'s "fairy" so they were really strict with her hahah xD). Bada also gave So Yeon a mirror at the end and said that it was So yeon's favorite thing when she was young. The hug at the end was soooooo cuteeeee. You can feel their great friendship. It's so great to see them together again. :) ====================================== mizz打上的解说 不过我实在懒得翻译 所以.....