---
product_id: 183896720
title: "One-Punch Man, Vol. 21: In An Instant"
price: "$23.60"
currency: USD
in_stock: true
reviews_count: 13
url: https://www.desertcart.us/products/183896720-one-punch-man-vol-21-in-an-instant
store_origin: US
region: United States of America
---

# One-Punch Man, Vol. 21: In An Instant

**Price:** $23.60
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** One-Punch Man, Vol. 21: In An Instant
- **How much does it cost?** $23.60 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/183896720-one-punch-man-vol-21-in-an-instant)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Life gets pretty boring when you can beat the snot out of any villain with just one punch. Nothing about Saitama passes the eyeball test when it comes to superheroes, from his lifeless expression to his bald head to his unimpressive physique. However, this average-looking guy has a not-so-average problem—he just can’t seem to find an opponent strong enough to take on! The curtain rises on the big battle between the Monster Association and heroes! As the lower-ranked heroes engage in intense battle, the Class-S crew takes out many monsters in one fell swoop before venturing further underground. Among them, Flashy Flash demonstrates splendid battle prowess against a duo of monstrous ninja!

Review: V good, regardless of bad reviews - I looove where the series is going, I suggest you ignore what everyone is saying. Saitama didn’t apear in this book, but I think that’s more than alright. The past 2 books have been more about the other side characters, and I like that. We get to see more of the hero association and as well as the monster association. Plus, we all know if Saitama had gone in from the beginning of the mission it would’ve all been over in an instant. I love where the story is headed and the art stays amazing. I totally suggest you keep up with the story!
Review: APPROVED 👍 - Saitama the goat👍, the manga came carefully protected

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #73,895 in Books ( See Top 100 in Books ) #156 in Media Tie-In Manga (Books) #823 in Shonen Manga (Books) #1,107 in Action & Adventure Manga (Books) |
| Customer Reviews | 4.9 out of 5 stars 3,522 Reviews |

## Images

![One-Punch Man, Vol. 21: In An Instant - Image 1](https://m.media-amazon.com/images/I/81NXSwvq5JL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ V good, regardless of bad reviews
*by C***S on October 15, 2020*

I looove where the series is going, I suggest you ignore what everyone is saying. Saitama didn’t apear in this book, but I think that’s more than alright. The past 2 books have been more about the other side characters, and I like that. We get to see more of the hero association and as well as the monster association. Plus, we all know if Saitama had gone in from the beginning of the mission it would’ve all been over in an instant. I love where the story is headed and the art stays amazing. I totally suggest you keep up with the story!

### ⭐⭐⭐⭐⭐ APPROVED 👍
*by C***R on October 22, 2025*

Saitama the goat👍, the manga came carefully protected

### ⭐⭐⭐⭐⭐ Fantastic continuation of the storyline
*by Y***G on October 8, 2020*

I know some users ONLY care about Saitama. Well this book shows very little of him, instead it concentrates as in the recent chapters, world building of all the other S and A etc heroes . It is great , gives more depth to the world and is very entertaining. Look, if we just had Saitama, we all KNOW what is gonna happen. Saitama will go in, 1 shot the boss and that is that. Really? is that all you think One Punch Man is about??

## Frequently Bought Together

- One-Punch Man 21: Volume 21
- One-Punch Man, Vol. 22, Volume 22
- ONE-PUNCH MAN 20

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/183896720-one-punch-man-vol-21-in-an-instant](https://www.desertcart.us/products/183896720-one-punch-man-vol-21-in-an-instant)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-19*