On Earth, Hero Work heroes were just standing there, Hero Work staff were protected by the radiation inside of Zeus. Zeus was charging an attack for a while because he has to launch this attack towards Garou that is millions of miles away, but with the attack that he absorbed can easily reach it.
Ken is telling his clones in Zeus to wait until they see a opportunity that they can easily hit Garou, but not when Garou is on one of the Jupiter's moons because even with all the power of the attack he absorbed previously, it would take a couple of seconds, but Garou is moving at light speed so They can't attack now.
Back to the the moon
Garou was focusing more on King because he is powerful, but he is much weaker than saitama because he has a limiter. However, King's body is adapting to his attacks every time, when Garou gets stronger, King's body is quickly adapting to the surroundings and Garou's attack.
Garou quickly made a portal so he could show the distance to attack, but King just grab Garou's fist so he could move from his attack. King is using Water Stream Rock Smashing Fist in a one-handed version, King will attack Garou in the one hand version for 3 seconds(They are going as fast as light or more right now) and use his two hand to knock Garou to Saitama. Garou had felt that attack, but thank to copying King's regeneration, he is fine and he is getting stronger every hit.
Saitama punched Garou on the stomach, Garou used his portals again to attack Saitama, but he was just a millisecond away from doing some damage. Saitama has punched him again, the force was so strong that it could have send them to a near star so he used a portal again to use that force to get more speed to attack Saitama. Saitama just jump away easily and land on a large piece of debris of Jupiter's moon and was going to jump back to attack Garou.
Saitama's jump caused the debris that he was standing on turn into dust and Saitama was going so fast that Garou couldn't dodge the attack and he is 30x stronger and faster than before. Saitama'a attack is so strong that he created Shockwave that launched King to a piece of debris and Garou's head was being basically crushed under Saitama's hand.
Saitama is mocking Garou words about copying him and King, he would surpass both of them and Saitama says " Are you going to saw me your overwhelming power, isn't this the whole point of this fight." Garou couldn't speak because his face is still on the ground, Garou destroyed the ground to get out of Saitama's hand and is attacking again.
Garou don't get what is going on because he is copying the two strongest heroes on Earth, but he can't defeat even one because they are adapting or they are growing in power too fast than he can copy. Genos can't copy King too much because for some reason, Garou keeps on vomiting blood the longer he handles it like his body can't handle the power that he is copying for King.
Garou punched Saitama again and hit landed, but Saitama easily took the hit like a weak punch from a child. Garou is being left behind in power from both heroes because they are insanely powerful and they're getting powerful as well at every second. Eventually one of these punches would actually kill him because he can't match the power with his defense and Garou is being desperate.
Saitama noticed that his clothes were all gone now, Garou noticed this and thought it was a good opportunity to attack. However, King is launching himself from debris to debris, every punch King land on Garou feel like a entire galaxy is punching him. Garou is being overwhelmed with King because he knows some martial arts and is countering him with every attack, this is causing Garou to be more frustrated and more predictable.
Garou opened up another portal to hit saitama again because he got more powerful when taking hits from King. Garou is attack with a NUCLEAR FISSION GRAVITY KNUCKLES again, but to Saitama it was just a normal punch that he can just grab. Garou cause dust to go into Saitama's nose, this caused Garou to be frightened because a sneeze can go as fast as sound, but with Saitama's power, he doesn't know what the results are so he's trying to dodge the sneeze.
His feeling about dodge is right because Saitama created a large pressure of air towards Jupiter, but it's also going to King that doesn't have much time to dodge the sneeze and decides to brace himself. Saitama's sneeze is so powerful that King's skin is getting peeled for the beginning, but when the sneeze was over, his body has adapted to Saitama power that he has right now. King's regeneration is now instant thanks to Saitama's accidentally attack him with a sneeze, King is now 20x stronger than before.
King when turn around is scared shitless because he would have been instantly kill, but thanks to the system/Ken he survived and gain power. Jupiter's surface was blow away and there was only the core of Jupiter after the sneeze was done.
The sneeze had launched Saitama and Garou out of the orbit of Jupiter , they are now in the middle of space. King had to take a deep breath in and exhale all of the air he has in his lungs to be luanch towards Saitama and Garou. Garou is been desperate right now and looking around space to see what could Saitama and King.
King is attacking again and Garou take the opportunity to get out of Saitama's grip by ripping his hand off and regenerate the hand back in seconds. Garou attack Saitama to knock him towards King, King stop his attack to grab Saitama and Garou attack them both again. This time a portal is behind the two when the attack lands on the heroes, the portal opened to the sun and Garou get out of there because the sun exploded when the two touched the sun with force.
Garou appeared at Earth, but he is still in space and he is celebrating because he thinks that he has won the fight. However, his celebration has been cut short because a large beam of energy is coming towards him and the one that launched the attack is Zeus. Garou is trying to redirect the attack to somewhere else, but the energy is difficult to redirect because of the force and the short distance he is to the attack.
Garou heard Saitama's voice complimenting the move he had, this cause Garou to be frightened and Zeus's attack lands. Garou's body has begin to be incinerated and his regeneration grow back his missing parts and they begin to repeat of incinerate to regenerate.It is a painful process, Garou see King in the distance and has fear had increased, the power of Zeus's attack increased because of the system's abilities.
Saitama has told Garou that he has farted towards the portal he had created when it was closing, King just inhale something like air and exhale with so much force that King had launched himself to the portal at the last second when it was closing. After the explanation, Saitama has punched him towards Earth, King just sunk like a rock to the Earth and he was the first one to be there.
Garou has became a beating mess of a man, Garou couldn't fight anymore because of the beaten he was getting everytime he got when fight the two heroes. Second reason is that copying King's power has give him power, but it also cost his body to be on its limits and when he had used King's regeneration had been the last straw for his body to give up.
Garou asked why don't he just kill him, but King is going to answer his question. " We promised the kid that we won't kill you and get your mind in the right place. It was his final request." Garou has tried to say King's last two words, but Garou is horrified to see Tareo's body in the distance and not moving. Garou screamed his heart out, trying to get away from the body so if there is a chance, he would survive, but that's just wishful thinking.
In his panic state, he had trip on a piece of debris and continues to cry because the death of his friend is has fault. Saitama is confused with Garou action because he has been act weird after they came back to Earth, Garou says that if someone do it was because he has a weak spirit.
Garou is weakly laughing because of the situation, he is defeat by a hero who thinks he isn't cut out to be a hero, King is a hero he thinks a hero should act and end evil, but King also spare Garou because of the kid's final request. Garou is thinking if Saitama or King had acted differently, he could have gone out like True Evil, but he was just spare instead.
Saitama asked why don't he just cling to his support, Garou was going to be angry at Saitama, but he stopped himself because Saitama is doing what he mean about clinging on support and Garou just give up in front of the two heroes.
Garou will ask the two heroes for a favor, Garou is basically ask to copy his martial arts because he is going to teach them to time travel. However, King just gently stop him, King just point at Saitama and says " I have a way to time travel, I can only do it to myself and Saitama is the one that should learn it." Garou is shock that King is someone that has a method of time travel and this gave Garou a slient respect for King. King actually knows how to time travel because one of the rumors that people are saying, the rumor says about him time traveling is a wild one that don't make sense, and he got the ability to time travel because of one of this abilities of the system/Ken.
Garou is doing the movements and Saitama is copy them, King is readying his ability when Saitama actually goes back in time. King sees that Garou is turning into salt, King is surprised about this and wants to stop this. However, Ken stops King because if they interfere with God's actions, both will be one on God's radar and will send more dangerous threat that can destroy Earth and every living being on it. Also if they go back in time, Garou won't be turn into salt so saving him right now is unnecessary because they're going to save him from God in the past.
Saitama is running back and going back in time, King uses his time travel abilities and he is beside Saitama because they are using the time stream to go to the same place. King points at the time that Garou is about to release his cosmic presence and both at the same time punch at the point of time.
Garou was going to thank God for this opportunity, but is punched by Saitama and King that are naked or barely have any clothing on them. With their boost of power after Cosmic Garou, they has punch out God's influence/power out of Garou's body and Ken quickly purchased a jar that collects essence, Ken has now have a jar of God's essence.
Saitama and King were launched toward their past selves and they begin to merge together because the universe can't have two of the same person in the same timeline because it can get mess real fast. Luckily in the panic and Garou's sudden power going down, the other heroes don't notice that two heroes has merge with their possible future selves. King and Saitama can't remember the future and they don't have the most power boost from the future and they are now at the power level before fighting Cosmic Garou.
However, Ken can remember everything, probably because of the power that he got from the Cosmic Dragon or his adopted father. The two heroes were confused on what happened, King looks around and sees that Tatsumaki is still sleeping on the rock he placed her, and Saitama and King were tackled by their pet/students. Saitama is relieved to see Genos because he has his core in his hand, King is just patting Nyan that is snuggling towards King's hand. King is actually happy to see Nyan because he is a monster that killed humans without mercy, but he is now loyal companion that he can trust any task with or better yet a friend.