Crash Course in Luck - S1.E645

Joo Woo-jae and Roh Yoon-seo participate with the members in choosing their mentors for the variety show. Despite their excitement upon entering the lecture room, they are taken aback by the unexpected presence of someone they did not anticipate encountering. With the new generation members showing off their trendy games, the oldies also show what they are capable of as the masters of variety shows.