It must be said that it was definitely the right decision for Riezel to learn 'Dia Fratel' from Airmid.
Its ability to single-handedly support an entire frontline was truly astonishing. Even after Ais fought for over an hour, getting beaten up by Udaeus, with bruises all over, this magic managed to restore her to her original condition in less than a minute.
Such an incredible recovery effect, even Airmid herself might not be able to achieve it.
But then again, she was a Level 2. Using the same magic in the hands of a Level 2 versus a Level 5, there was bound to be a difference.
Since Riezel's 'MAG' was already off the charts, the magic he cast and the one Airmid cast were incomparable.
As a result, Ais could quickly bounce back, with only her mind slightly lacking, making her look a bit tired.
But that was more than enough.
As long as she didn't use magic, she should still be able to fight at full power.
"What?" Ais looked at Riezel in surprise. "You're not coming back with me?"
Indeed, he wasn't planning to go back with her—or rather, he didn't have the time to go back with her anymore.
In order to catch up with Ais, he spent a whole day and a half, using up the last bit of his time limit in this world.
He could feel the Dimensional Magic Cube in his mind slowly starting to turn, seemingly about to open.
For this reason, he wouldn't be able to go back with her.
However, Ais was clueless about this.
"Is there something you need to take care of?" Ais looked at him, seemingly ready to stay with him.
However, he shook his head.
"I do have something to take care of, and it's not a small one..." Riezel explained. "Since your problem is resolved, I'm preparing to leave."
Even the most clueless person would understand the hidden meaning behind his words. Once he leaves, it might not be easy for him to return anytime soon.
"I've already talked to Loki, and I was planning to tell everyone soon, but it looks like it's too late now..." Riezel smiled at her. "Just tell Loki for me, say that I've already set off."
Ais instantly fell silent.
"Go." Riezel urged slightly, sensing his limited time. "Riveria is on her way to find you. Head back, and you'll meet her soon."
Upon hearing that, Ais looked deeply into his eyes, and Riezel looked back with a smile on his face.
They stared at each other for a moment before she nodded.
"I'll be waiting for you at home." Ais said in a rare, gentle tone.
Hearing the term 'home', Riezel's eyes widened slightly, and his smile became even more warm and genuine.
"Yeah, I'll congratulate you in advance on leveling up." Riezel nodded.
This time, Ais was almost certain to level up. By then, she would be Level 6, and her strength might surpass his again.
"But, I'll catch up to you soon." Riezel said fearlessly.
"..." Ais watched him quietly for a moment before responding. "...I'll be waiting for you."
"Alright, go."
"Um."
Ais retreated a few steps, but her gaze remained on his body.
Shortly afterward, as if letting go of something, she abruptly turned around and sprinted away.
Riezel watched her leave until her back was no longer visible, and only then did the transparent cube in his mind begin to rotate.
[The time limit has reached zero, dimensional travel is about to conclude, initiating inspection.]
[User detected possessing unique powers of this world and will return with the user after dissolving the consciousness body.]
[User detected carrying unique items of this world and can return with the user by consuming energy.]
[A list of unique items has been compiled, please proceed with your selection.]
With such messages received by Riezel, a list of items, invisible to others, suddenly appeared in his mind.
[1: Loki's God Blood (70)]
[2: Fool (5)]
[3: Hermit (2)]
[4: Battle Suit (1)]
[5: Elixir (1)]
[6: ...]
That was a list of items that Riezel had carried on his body.
Some items, like Fool and Hermit, were strapped on his waist. Others, such as the elixir and replacement battle suit, were stored in the Dimensional Magic Cube's storage space for his use as needed.
Now, the Dimensional Magic Cube had detected all these items and had created a list for him to choose from.
In the Dimensional Magic Cube's instructions, section five stated that when carrying items for dimensional travel, the corresponding energy consumption needed to be based on the value of the items.
Following this rule, if he wanted to bring certain items back to the main world, he had to use the energy of the Dimensional Magic Cube. After this energy was consumed, the chosen items would assimilate into the Dimensional Magic Cube, enabling them to travel dimensionally with him.
At that point, whether these items returned with him to the main world or accompanied him to other worlds, it was all possible. The selected items could travel dimensionally with him at all times without further energy consumption.
As for the powers, it wasn't as complicated. As explained in the Dimensional Magic Cube's instructions, it would return with him after his consciousness body dissolved without consuming any energy.
Riezel immediately checked the current energy of the Dimensional Magic Cube.
[Dimensional Energy: 100]
The Dimensional Magic Cube could automatically absorb energy from each world. When it had accumulated enough energy for one month, it could perform dimensional travel.
The cube absorbed 1 unit of energy per day, totaling 30 units in a month.
In other words, one dimensional travel required 30 units of energy, and if there was a need to travel to a personally selected world, it required ten times the energy, which meant 300 units.
Having spent a hundred days in the world of Danmachi, the Dimensional Magic Cube had absorbed a hundred days' worth of energy, resulting in the current energy of exactly 100 units.
Originally, Riezel thought the cube absorbed energy based on the main world's time. However, he realized that the energy absorbed by the cube followed the same ratio as the time he spent in other worlds. This meant that the cube followed his time as the reference point.
After all, energy existing in the dimensional world could be said to be all-encompassing. The main world was a world, and this world was also a world, with no significant differences.
Finished pondering, Riezel quickly considered the items he needed to take back with him.
Firstly, there was 'Loki's God Blood'.
This was something Riezel requested from Loki upon knowing he was about to leave. After leaving this world, if he wanted to update his status, he would have to do it independently, as he couldn't rely on her anymore.
Therefore, he naturally needed Loki's blood as the essential medium to update his status, ensuring that after leaving this world, his status could still be updated, and he could continue to grow.
Hence, he asked Loki for a small bottle of her blood, causing her to grumble and almost ascend to heaven on the spot.
With this bottle of blood, Riezel could perform hundreds of status updates.
God's blood was undeniably expensive.
While the units of energy consumed by other items were only in single digits, even Fool only required 5 units of energy. In contrast, this bottle of god's blood needed a whopping 70 units of energy, truly a rip-off.
However, Riezel had no choice.
This was the blood of the gods, and regardless of the cost, he must take it with him. For his own growth and future, he had to reluctantly accept this price.
Next, Fool and Hermit also had to be taken along.
These two were Durandal attribute weapons, the most suitable weapon for him. Especially Fool, not only sharp and handy, but also extremely light. It would allow him to fully utilize the effect of 'Lightweight' development ability, further boosting his 'DEX' and 'AGI', so he definitely had to bring them along.
The rest didn't matter much.
The battle suit was a durable piece of clothing he bought casually in the market, nothing special. If it weren't for the fact that dimensional energy had a specified minimum unit, which was 1 unit, this clothing wouldn't be worth the price.
The elixir, on the other hand, was worth its 1 unit cost of energy. After all, it was the most effective potion in this world, capable of quickly healing almost any injury that wasn't fatal or limb-severing. Spending 1 unit of energy to take it away was definitely not a loss.
Of course, if he hadn't learned the top-class healing magic 'Dia Fratel', he would probably have taken some back. Unfortunately, he had already learned healing magic more astonishing than the effects of elixir, rendering it somewhat redundant.
The remaining items were miscellaneous things—magic stones, various spare potions, and even food and water. There was no need to consume dimensional energy to bring them back to the main world.
In summary—
"A bottle of god's blood and two weapons, huh? That's all the stuff I need to take with me."
Riezel quickly made his selection.
[Loki's God Blood (70)]
[Fool (5)]
[Hermit (2)]
Three items were chosen, totaling 77 units of energy.
[Dimensional Energy: 23]
After confirming the remaining energy, Riezel concluded the process.
[Selection completed, starting execution.]
[Item assimilation successful.]
[Dimensional travel concluded, initiating the return procedure.]
Riezel's body instantly faded away, appearing as if it had vanished into thin air, leaving no trace behind.
His consciousness was absorbed by the Dimensional Magic Cube, which had opened inside his mind, entering the dimensional channel and heading back toward the main world.
Soon, the 37th Floor of the dungeon became silent, returning to its dormant state.