In which the Kims' and the Wus' are best buddies until their kids meet up and more fun awaits for them.

The Wus'

• Kris Wu Yifan
• Kim Joonmyeon
• Wu Minseok; 16 years old
• Wu Luhan; 15 years old
• Wu Yixing; 11 years old
• Wu Kyungsoo; 10 years old
• Wu Zitao; 9 years old
• Wu Baekhyun; 5 years old (Oldest triplet)
• Wu Jongdae; 5 years old (Second oldest tripet)
• Wu Chanyeol; 5 years old (Youngest triplet)
• Wu JongIn; 3 years old (Oldest twin)
• Wu Sehun; 3 years old (Youngest twin/Wu)

The Kims'

• Kim NamJoon
• Kim SeokJin
• Kim Yoongi; 16 years old
• Kim Hoseok; 15 years old
• Kim Jimin; 2 years old (Older twin)
• Kim Taehyung; 2 years old (Youngest twin)
• Kim Jungkook; 8 months old (Youngest Kim)