Dr.Deus grabbed the device and started analyzing it, it was a device called Travelling Bagー A 2nd Tier device, it sounds normal but its functions are incredible, it could be easily made by kids from this era but they first needed to find the materials needed to make it.
For Reo, the materials needed and the guidance was all there as Dr.Deus have these materials lying everywhere like trash, It took Reo 3 days to create one and even improve it by a whole tier, normally, Travelling bag would be a 1st tier device, as for its uses?
The Travelling Bag is mostly used by magus and hunters, it was cheap and convenient, they could store their food and items inside, they won't rot inside the bag as it had a function to freeze time, of course, they won't be able to store a living creature inside.
As for Reo's magical bag, it won't just freeze the time but also can make the food at their fresh condition, it could even retain the heat of the food they stored inside, but that's not all, every travelling bag had 1 cubic meter of space inside but to Reo's it has 3 cubic meters space.
Reo could actually improve it but he doesn't have the materials to improve it, Dr.Deus smiled as he looked at the invention of Reo, 'I could pass everything to him,' he thought.
"How is it Doctor?" Reo asked.
"Yes, very good, my boyー Reo, I will teach you more." Dr.Deus said as he patted Reo's head.
"Yes." Reo gave a sweet smile, different from 2 years ago.
So from there on, Dr.Deus taught Reo all of his knowledge and he became more familiar with Reo, he treated him like his own son, Reo was a good innocent boy, even though he had a harsh past, it was very heartwarming for Dr. Deus to see this boy smiling sweetly.
In a blink of an eye, many years has passed Reo was now a 13 year old boy, his long black hair was cut short and his features was not that handsome but also not that ugly, his body was well tone and was very tall for someone one at his age, well that was because of his living armor.
Reo was doing his work today, creating a device, Dr.Deus looked at Reo who was working and smiled, 'you have grown very well, my boy, I hope I was a good father for you,' Dr.Deus thought.
*Cough *Cough
Dr. Deus coughed, Reo stopped working and turned his head, he saw Dr.Deus and smiled, "Do you need something, Doctor?" Reo asked, Dr. Deus had white hair and wrinkles on his face, indicating he had aged, the humanity maybe advanced but they still can't escape getting old.
"No, I just came to watch you." Dr.Deus said with a smile.
"Okay, I'll continue working." Reo nodded and continued making his device; he received a pat on his back before Dr.Deus left, Reo stopped working and glanced at Dr.Deus, he had seen Dr.Deus getting weaker, day by day, he tried to look for a device that could help Dr.Deus but there was none.
One night, Reo sneaked into the library of Dr.Deus, it had a large variety of books and many scrolls, he was not allowed to go here but Reo was desperate to help Dr.Deus, he started searching for a book about the materials and the monsters, after looking for a while, he found an old looking scroll.
"Monsters Territory."
He took the book and searched for the others, after a while he found a book, the records of materials, Reo immediately grabbed it and left the room, a little while later a figure came out from the dark.
"…"
Reo went back to his room and locked the door, he then sat on his bed and covered himself with blanket, his eyes was also made from living armor so it had night vision, and with his memory chip that Dr.Deus made for him, his processing and memory was million times faster than a normal human, Reo started reading and memorizing the book.
The next day, Reo came out from his room and went to his working space, he started doing formulas and blue prints, of course, he kept it hidden from Dr.Deus, he would get angry at him if he knew, he looked at the time and saw it was about time for Dr.Deus to come and check up on him, Reo immediately hid the blue prints.
He then took out the device he was working on (Dummy) and a few minutes later, Dr.Deus came and checked up on him, he smiled as he saw how focused Reo was working on the device, he then patted Reo on the back and told him to come eat.
Reo nodded.
"…"
At night time, Reo took a knife from the kitchen, a black robe and a machete, 'time to go hunting.'