Traditionally, the cast is given clues to guess the identity of the episode's guests, and once the guests appear and are introduced, they and the cast are given a set of puzzles to solve.

Lee Jang-won
Self

Jeon Hyun-moo
Self

Ha Seok-jin
Self

Kim Ji-seok
Self

Tyler Rasch
Self

Park Kyung
Self

RM
Self

Sakura

Nako Yabuki