Kai

In honor of Black Day, when singles celebrate with jjajangmyeon, the cast and guests must team up into couples, no matter gender; but staying single is the ultimate mission; couples rack up penalty badges and edge closer to defeat.

The seventh theme is about stars; there's a star who makes dreams come true and a star who appears in your dream; lecturer Cho Jung-sik is known for helping students get perfect scores; Exo's Kai is the first million-seller K-pop idol of the century.