No Math School Trip

The reality-show newbies D.O., ZICO, Crush, and Choi Jung-hoon, join seasoned entertainers Yang Se-chan and Lee Yong-jin on a reckless trip to Hokkaido, Japan. Crush is shy, while Jung-hoon is wildly outgoing. Will the group of friends hit it off? With crazy missions at hand, Crush calls his dad for help. From idol looks to 7XL size jeans and a grenade accessory, they experiment with fashion that shocks a local vintage shop guy. What will become of their crazy fashion show?

Where do the guys arrive in vintage outfits? It's a restaurant with horsehair crab hot pot, grilled scallops, and wagyu steak that is rated five stars! Now it's a three-on-three game for dinner and Yang Se-chan steals the show with his lack of knowledge! That night, there are only three rooms and they must compete for a private room. D.O. becomes a sharp-eyed detective while ZICO and Crush's friendship falls apart. There is even a one-on-five round! What will happen with their pride at stake?

It's finally the pop quiz! Despite taking notes, the guys find themselves struggling to remember. Who crashes and burns in the spectacle of wrong answers? Slapstick comedy unfolds in the winter wonderland and everyone bonds with a frosty battle. Emerging victorious as an entertainer is Choi Jung-hoon! Is he willing to become a wreck to get at ZICO? The frazzled guys are welcomed back by steaming hot springs, and heart-to-heart talks are shared in the warmth. Coming soon!

There is a course meal with fresh produce that leaves everyone speechless! The chopsticks move fast as everyone enjoys the epic feast, but Choi Jung-hoon looks famished. Why is he lucked out? Then it's level-up to become genius musicians at a karaoke! The guys hold a concert-like competition, from D.O.'s heartfelt love confession to ZICO's intense performance. The craze continues with drinks at a vinyl bar, but are they asking for disaster? What becomes of their upcoming pop quiz?

Crush, who brings rain wherever he goes, now seems to be drawing in heavy snow. How far will his activities go? The child-like men start a savage sled race. Even the older guys who have been doing variety shows for years acknowledge that D.O. seems to have gone wacko. Why did he suddenly go berserk in the snow? The members later go to an aquarium and have a therapeutic experience, seeing precious marine life and cute sea animals.

The thick-as-thieves guys play "Would you rather!" Everyone laughs their head off while Choi Jung-hoon is all serious. And what question rocks the ten-year friendship between ZICO and Crush? On the fourth day, they visit the snow-covered "Christmas Tree" of Biei! With photos taken there, they decide who gets lunch with a street poll. Yang Se-chan vote baits with D.O. while Choi Jung-hoon is millennial-friendly. But what's with this gaming marathon? How does their overdose of games end?