1x9 - Koro Sensei Quest!

Kaede Kayano witnesses Nagisa and her pudding being abducted by Akira Takaoka the Merciless, ringleader of the Taka Gang. The students of Class 3-E goes to Fukuma Tower, where Nagisa is being held captive. On the second floor, Yuzuki Fuwa takes down Smog the Noxious by breaking the fourth wall.