Blast and his 3 companions are astonished by Garou and Saitama's dreadful power.
At the end of Chapter 213 of One Punch Man, Garou and Saitama both unleash serious punches towards each other. The energy emitted from these punches makes the Earth's number 1 hero feel awful, Blast understands it could blow up the blue planet.

Therefore, at the beginning of Chapter 214, Blast makes a decisive and insightful decision to save Earth. In an instant, Blast opens a spatial gate to teleport all 3 away from Earth before the collision of the two punches occurs.

Immediately afterward, the moment of collision between Garou and Saitama's serious punches actually happens. The force of the square serious punch is truly terrifying. So much so that due to the tremendous energy of this collision, the portal cannot handle such a large amount of energy, Blast says he cannot create a sufficient distance.
In that desperate moment, Blast's teammates appear. They assist Blast in redirecting the destructive energy vector created by the collision of Garou and Saitama's serious punch, so that it only detonates at a very distant location from Earth. Thus, the blue planet remains intact.
Additionally, do you recall some of Blast's allies who resemble Boros and Beast King in the unedited version of chapter 211? In this latest chapter, they have reappeared although still remaining unseen.

Besides these two individuals, accompanying them is a mysterious girl. What's intriguing is that they have begun to speculate about the possibility of 'another person' (Saitama) being capable of facing a being endowed with multiple divine powers alone.
One Punch Man fans are very curious about these companions of Blast; undoubtedly, they also possess powers not inferior to Earth's number one hero.