Volume 21

Time to say Thank you
Volume 21
Volume Information
Kanji	ありがとうの時間
Romaji	Arigatō no jikan
Pages	208
Cover Emotion	Happy (The Stargazed Moon)
Release
Japanese	July 4, 2016
English	April 3, 2018
Chapters
178. Time for Tears 179. Time Passes 180. Time to Kill Extra 1. Time to Come Home Extra 2. Time to Go to the Izakaya Extra 3. Identity Time Extra 4. Time to say Thank you Extra 5. Tokyo Department Store War Journal (One-Shot)
Volume Guide
Previous ← Time to Graduate	Next N/A →

Time to say Thank you (ありがとうの時間, Arigatō no Jikan) is the final volume of the Assassination Classroom manga.

Preface

Ever caught yourself screaming, "I could just kill that teacher"? What would it take to justify such antisocial behavior and weeks of detention? Especially if he's the best teacher you've ever had? Giving you an "F" on a quiz? Mispronouncing your name during roll call...again? How about blowing up the moon and threatening to do the same to Mother Earth—unless you take him out first?! Plus a reward of a cool 100 million from the Ministry of Defense! Okay, now that you're committed... How are you going to pull this off? What does your pathetic class of misfits have in their arsenal to combat Teach's alien technology, bizarre powers and...tentacles?

Publisher's Summary

In the aftermath of tragedy, the students of 3-E nevertheless march proudly in their graduation ceremony. Will their futures still unfold as planned? And what will they do with their reward money…? Then, enjoy a long side story revealing what Koro Sensei was really up to over winter break! Can Koro Sensei truly make a friend and ally out of anyone…?! Plus, a bonus short story with all-new characters, set in a dystopian future.

Chapters

Chapter 178: Time for Tears

Main article: Chapter 178

Chapter 179: Time Passes

Main article: Chapter 180

Chapter 180: Time to Kill

Main article: Chapter 180

Extra 1: Time to Come Home

Main article: Extra Chapter 1

Extra 2: Time to Go to the Izakaya

Main article: Extra Chapter 2

Extra 3: Time to Reveal Identities

Main article: Extra Chapter 3

Extra 4: Time to say Thank you

Main article: Extra Chapter 4)

Extra 5: Tokyo Department Store War Jounral

Main article: Extra Chapter 5

Trivia

• This volume has the most pages in it out of all the volumes by far.