Worst Gaiden Mr. Zetton

Vol.7 Chapter 25: Entrapment
Chapter 24: The Negotiator
Vol.7 Chapter 26: Sparkler
Chapter 24: The Negotiator
Vol.7 Chapter 26: Sparkler
After years of studying, Hanazawa Saburou, AKA Suzuran's legendary Zetton, has finally become a high school teacher. But on his first day at work, the principal tells him he was actually hired not to teach, but to make the students of his homeroom class drop out of school?!