Volume 20, One-Punch Man Wiki

quot;Let's Go!" (行くぞ！, Ikuzo!) is the twentieth volume of the One-Punch Man manga series. Immediately before the big Monster Association battle, the Class-S heroes hold a strategy meeting. Unfortunately, they just aren't in sync, and when Sweet Mask barges in, the situation only gets worse. Thankfully, King appears just in time to boost their morale and it's a good thing, too, because the big monster battle begins! Volume 20 features extended front and back covers.

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