Eero nodded, acknowledging Trunks' claim. "He is right. I also noticed this when I was traveling through timelines. I am a unique entity. I have no future or past. Even in the same timeline, I live in the present only."
"For example, I am talking to you now. My existence in the previous moment disappears. It's like frame refresh rate. No one can trace me through time. It has something to do with my talent."
"What? I don't understand, but you are amazing, Eero," Goku scratched his head, praising.
Eero was speechless, looking at him. 'I don't need your praise. I just explained so you people don't start wild guessing.'
The most shocked was Whis. Everytime listening to Eero's explanation, he knows a lot of new secrets of his time talent.
Looking at Eero, a thought surged through his heart, 'Mr. Eero must have a huge secret.'
"First, we should head for Universe 10 in order to stop this timeline Zamasu," Whis then suggested. He inferred that Black Goku was Zamasu by the Supreme Kai time ring he was wearing.
Goku, Whis, and Beerus then went to Universe 10 in order to erase Zamasu.
After dealing with Zamasu, on the way, Goku met with Zeno and talked about the tournament of Universes. Then they returned to Earth.
...
Eero then opened a future timeline portal upon their return and walked inside along with them.
Looking at the ominous atmosphere spreading on the whole Earth, Goku and Vegeta were shocked. "Why is this?"
"We have erased him in the past, yet nothing changed right now," Goku exclaimed startlingly.
Future Trunks and Mai were also surprised and shocked.
Eero intriguingly glanced at Black Goku and Future Zamasu.
Future Zamasu has appeared standing next to Goku Black, which leaves Goku, Future Trunks, and Vegeta shocked.
Goku realizes the two are allies, but Future Zamasu corrects him, saying they are kindred spirits.
Then Black Goku suddenly attacked Vegeta,
Vegeta collapses from the hole in his chest from Goku Black's attack, and Future Trunks confirms he fell unconscious as he can still feel his ki.
Future Trunks realizes that since the two are standing side by side, Goku Black and Zamasu are not actually the same person, and wonders just who Goku Black is.
Future Zamasu exclaims that the just world he is longing for will soon come to fruition, and Goku powers up and engages Future Zamasu in battle, his punch blocked by Future Zamasu's Energy Blade.
Goku thinks to himself that things feel different compared to when he fought Zamasu in the present timeline.
The two fight an evenly matched battle, but eventually Goku Black joins the battle, and together they drive Goku into a corner.
Future Zamasu exclaims that Goku is his prey, but Goku Black says that his body has a strong desire to kill Goku that he cannot go against.
After a while, Eero sees all three, Goku, Vegeta, and Future Trunks, are on the verge of death under the attack of Black Goku and Future Zamasu.
Just as he was watching them calmly, Black Goku turned and glanced at Eero's direction and said, "I don't understand why a mortal like you appeared here to die."
"I wanted you to leave for the end, in order to let you witness horror, struggle and beg for mercy, yet your reaction disappointed me a lot, Anyway wait for a while when I deal with them, I will conclude zero mortal plan with you." Black Goku spoke evilly looking at Eero. Future Zamasu also smiled coldly.
Eero was startled listening to Black Goku; his expression became cold as he walked toward them expressionlessly, reminded, "Originally I was thinking about delaying your death, but you annoyed me, I hope you are prepared to regret your birth."
"Ha ha ha, Have you heard what he just said." Black Goku laughed loudly, pointing at Eero. Zamasu shook his head in disdain.
Next Second both eyes widened, looking at Zamasu's arms and legs turning into meat paste floating in the air beside him, then slowly those meat paste turned into ashes.
"Ahhhhh," Zamasu released a heart-bursting cry.
Thud!
His torso fell on the ground. "I can't heal, I can't heal? What have you done to me? I was supposed to be immortal," Zamasu shouted in horror looking at Eero.
Eero ignored his creak, gazed at Black Goku, instantly appeared in front of him who was in a daze because of Future Zamasu.
Kamehameha!
"Die!!!" Black Goku came to his senses felt a crisis, instantly attacked Eero appeared in front of him.
Next second, Eero in front turned into an afterimage and appeared behind him, grabbing Black Goku neck and his right arm.
Eero tightened his grasp, narrowed his eyes and spoke, "I hope you are ready for the consequences."
Black Goku angrily shouted, "How can you have such power?"
"Heup!"
Next, instantly his neck vein bulged, even his face was covered in veins, a suffocating horror shrouded his heart, he couldn't talk as if his breath was under shinigami's control.
"Ahhhhhhh," he started shouting painfully.
Tear!
Eero grasped his arm and shredded it like paper, blood splattering.
Goku, Vegeta, Future Trunks, even Future Zamasu, forgot his pain, listening the Black Goku painful cry in daze.
Eero turned his arm into ashes. Black Goku's face changed; a huge crisis swelled in his heart as if his arm would not regenerate again. His heart sank.
Feeling the grip on his neck relax a little, Black Goku leaped forward, turned around, and attacked Eero behind him.
His face changed, looking at the empty area, Eero disappeared. 'Where is he?' looking around anxiously.
While Eero was staying and watching him from behind, no matter where he turns, how fast he turns he can't reach the trillion fold domain speed,
Next second, he found himself lying on the ground, feeling pain on his face. A foot was resting on his side face, while his other remaining arm was grasped by Eero like before.
He hadn't felt such humiliation before in life.
"How dare you? I will kill you, definitely," Black Goku glared with his red eye, looking at Eero with hatred and resentment.
He started struggling but to no avail; no matter how much his strength increased, he couldn't move an inch.