Guilt

That's why Fein also had to find reliable allies that could help him fend for those threats in the future.

'It seems I need to build a similar organization like SHIELD in the Marvel in this world,' Fein thought jokingly. 

Of course, he won't do such a thing. He only cares about his friend and family the most. At the very least, he would try his best to fight enemies with similar strength to him.

"Let's start your sister's examination," Gregory said. He went to the door, stretched his hand, and pulled it. "And also see the supposed damage you've done in the Underground Base"

After saying this, Gregory walked out of the office.

"Dude, what damage did you do? Is there something that I didn't know about?" Michael looked at Fein and his sister and asked with curiosity.

"Forget it. It's not worth mentioning at all." Fein scratched his head awkwardly.