Gintama Season 1 Episode 109 Episode 109 - "Life is a Test"

Yamazaki gets orders to go undercover, and attempts to sneak into the Anti-Foreigner Faction hideout. His job is to find out what missions faction members are being given and to apprehend Kotaro Katsura "The Unstoppable" along with all his officials. Yamazaki uses his overwhelming blandness to sneak in without drawing any suspicion. But in order to become an Anti-Foreigner Faction member, he needs to pass an interview with Katsura and a written employment exam.