*Creak!*

"Excuse me." The door opened and followed by a woman's voice. Kai turned around and saw a black-haired girl coming inside the room. She looked like someone in her early twenties, not looking like someone who had served the military for long.

"Oh, Via. You have come…" Nathan smiled before waving his hand, asking her to come closer.

Kai noticed her right after she came inside this building. After all, no one would be bothered enough to come inside this building.

"This is the one talked to you last time, Kai Carter. He would be creating the map with you, and this place will be your workplace. You can paint the wall as you like." Nathan introduced Kai to Via. "How about you introduce yourself first?"

She nodded before looking at Kai politely. "Nice to meet you, Sir Carter. I'm Via Carman, and you can call me Via."

"Haha… Michael was the one who found your talent back then…" Nathan smiled gently, recalling about the past.

"Yes." Via smiled and closed her eyes. "I was only a kid who couldn't even enter either Military School or Magic Academy. After all, I was only a useless Light Magic kid…"

"Light Magic?" Kai widened his eyes in surprise before turning to Nathan, asking for an explanation. "Is she an S rank magician?"

"No. I wasn't qualified as an S rank magician despite having Light Magic. After all, My Light Magic is more to a light projection. I tried every Light Magic in the world, but none of them suit me… Until Sir Michael found my talent to be useful for him." Via closed her eyes and explained.

"Why don't you show your magic?" Nathan winked his eyes. He wanted her to show her magic to speed up the process.

Via thought for a moment and nodded. She kneeled and placed her hand on the ground. "Projection."

A yellow magic circle appeared on the ground. It flashed a blue light before turning into a building projection, specifically this building.

"This is my power." Via smiled before suddenly touching the building. "This is my power. My light magic is for Projection. I can project everything I see and transform them into 3D images like this."

She waved her hand, slapping the building. Surprisingly, the building crumbled to the ground, surprising Kai.

"What is that…" Kai opened his mouth in surprise.

"I can also control the image itself. In other words, I can build the Underground Nest map perfectly." Via smiled gently.

"This is excellent magic. Back in the days, she even created SOS signals in the sky or created a terrain and battle simulation. Her power is truly useful…" Nathan exclaimed proudly.

"I was just a useless person back then. If Sir Michael didn't invite me to join Graham Family, I would only be the same useless person." Via shook her head and replied humbly.

"Haha… You don't need to be modest. You have saved many lives with your ability even though you can't fight, and you can take pride in yourself." Nathan smiled. "In fact, everyone could use their magic to help fight the magical beasts. They just don't know how to use it."

"Indeed." Via nodded in agreement.

Kai looked down, thinking about himself. It was actually the start of him becoming an unorthodox magician, especially with the help of his hearing.

"Anyway, we should stop reminiscing because we need to finish many things," Via said before staring at Kai for a few seconds.

"Hmm?" Kai tilted his head in confusion. "What is it?"

"I need you to make the basic map first in this place before I can create the image in projection. After that, we can do some editing in detail before I make the map into a digital image and distribute it to the army." Via explained.

"I see. Sure, I will do my best to draw it. I'm sorry if my drawing is horrendous." Kai apologized for his skill first.

"Don't mind. The digital is better, so we should make the map as detailed as possible." Via nodded.

"Though I can only roughly guess the map according to the magical beasts and some of their vibration… I can't create one hundred percent, but seventy percent should be possible." Kai turned to Nathan, who was the leader of this campaign.

"Oh, do you mean like some tunnel and such? It's really hard to create all of them without using your ears and some explosions. So, I don't really mind. We will ask the army to improvise later." Nathan nodded.

"Then, I can start working on the map." Kai nodded.

"Sure. I will leave you two alone since I need to do my job as well. Call me if you have any questions or encounter any troubles." Nathan waved his hand and left the room.

Kai and Via exchanged looks for a few seconds before nodding at each other. "I will start working on the map."

"Sure. I will be watching you and start making the projection. At a certain period, we can start discussing to fix some details. Are you fine with it?" Via asked.

Kai thought for a moment and nodded. "Yeah."

Without saying anything more, Kai proceeded with his task. He closed his eyes for a few seconds, creating the tunnel inside his mind slowly but surely.

Grabbing the marker on the ground, Kai began with two straight strokes followed with a wavy pattern on the top. He marked the first stroke with an 'X' to show it was this building. Kai started making his way to the north of that place, specifically toward the entrance.

It would be easier to know their entrance and their location before filling the details.

Via didn't understand his intention, but still followed everything Kai drew. Especially at the part where the tunnel descended or ascended to another height.

Kai drew it according to the book, but it was still a bit horrible and sometimes made Via ask the details.

However, no matter how complex the start was, it would never be compared to the details. As soon as Kai finished connecting the underground tunnel below this building to the entrance, he began drawing the detail around the entrance.

The horrible part of this tunnel was how many tunnels suddenly up and down, creating a very complex pattern. There was one fifteen meters below the ground tunnel and one at the twenty-meters mark. If Kai continued to deepen more layers, he would actually lower it to a hundred-meters mark.

Even Via was shocked, hearing how big the Nest was. In the end, Via asked to do it in several parts, which separated them by ground level. For the first part, Kai only needed to draw from the highest layer to twenty meters in depth.

When there were several layers within a single part, Kai used the wall to describe how it looked like.

Via nodded and projected Kai's drawing slowly. And after finishing the first layer, she asked Kai to check the projection. After all, it was normal to make a mistake due to Kai's rough sketch, misunderstanding, and so on. Luckily, she had been doing this job for a few years, so she didn't make many mistakes.

After fixing here and there, Kai and Via finally finished the first layer. Unbeknownst to them, they had spent almost five hours in this place, and Kai's belly started rumbling. After all, he hadn't eaten a single thing after coming to this base.

"I'm going to eat first," Kai said to Via and halted the project.

"I can guide you there." Via nodded, offering him to show the way.

Thinking it was the first time he was in this place, Kai took her offer. "Thank you."

However, his decision changed as soon as he came out of the room. In front of the door stood a table with a few dishes. Right on the corner of the table was a note from someone.

Kai grabbed the note and read it.

'I know you are working hard, but you need to take rest too. I can bring the food for you, but you still need to sleep… Eight hours of sleep so you can work your brain again. You already have so much burden, so this is the only thing I can do for you. - Michelle.

'PS: Ayaka used magic to warm the food, and Tasha brought the mattress for you with her teleportation magic. Thank them as well.'

Kai smiled when reading this. He looked at Via and said, "Let's eat."

Via was hesitating to or not to take his offer. After all, his girls were the ones who brought it. However, peeking at the message that told her she could have it too, she nodded. "Thank you."

She agreed with him because the message was from the young lady of the Graham Family, Michelle.

The food was still warm, and Tasha brought him a four mattress for him and Via. In this case, they could sleep in this building nicely, especially inside the room as there was a heater there.

Kai asked a few things from Via, especially about the matter in the Graham Family. Surprisingly, he found out that Via already served the army for almost a decade under the banner of Graham Family and obtained recognition from the government. She was like a special officer in the army. Some families once invited her to join their family, but she rejected all of them because of how grateful she was to the Graham Family.

Kai had a new kind of respect for Michael, who never let talent go to waste.

They finished the meals and continued with the job as Kai wanted it to finish as soon as possible.