Tomoya was 18 years old when a miraculous Dimensional Jump System appeared. The moment it activated, he also regained the memories of his past life and discovered that he was actually living in a fictional story known as: High School DxD.
From an ordinary student, Tomoya begins his journey to become the most powerful being across all dimensions.
Dimensions he visits:
First: That Time I Got Reincarnated as a Slime (Tensei Shitara Slime Datta Ken)
Second: Naruto Or Boruto
Third: Not decided yet — it will be developed as the story progresses.
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Tomoya opened his eyes upon waking and saw his room. Recalling what happened last night, he blinked and rubbed his eyes.
'Was that real? Or was it just a dream?'
The problem was that his brain seemed to work faster, as if he had the memories of a past life.
With doubt, he murmured softly: "Status."
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Name: Tomoya Yamano
Race: Human
Class: None
Title: None
Level: 1
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Attributes:
Strength: 10 [+]
Intelligence: 280 [+]
Speed: 10 [+]
Luck: 50
Points: 0
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Attack Power: 100
Magical Attack Power: 2,800
Resistance: 560
Defense: 20
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"It's real…" He murmured, incredulous at seeing the holographic screen in front of his retina.
...
Everything changed last night.
He was alone in his apartment eating cake, celebrating his eighteenth birthday.
When he finished eating, something happened.
[Tomoya Yamano, 18 years old. Compatibility with Dimension Jump System... 100%! Binding the System to Host... 1%, 5%, 35%... 100%!]
[Memories of a past life found. Starting the unlocking process... 1%, 10%, 99%... Done!]
[Noting the Host's lack of strength. Danger! Danger!]
[Opening the beginner's package...]
[Congratulations, you received: Tony Stark Template!]
[Initiating the restoration of past life memories and starting the merging with Tony Stark Template!]
After all this was over, the dizziness he felt, along with the intense headache, caused him to faint.
...
Looking at the simple room and thinking about what he had gained, he sighed.
'Even with Tony Stark's intelligence, I'm not a billionaire.' He pretended to sigh.
Being intelligent is a powerful weapon. That's what he believed.
However, he had no intention of following the same path as Tony Stark and creating armor.
He didn't disdain it, but it wasn't his style.
There's a version in the comics where Tony Stark became the Sorcerer Supreme instead of Doctor Strange.
And, with such a high magical attack power from the start, it was a good idea to follow a similar path.
"Skills." He murmured.
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Skills:
- [Dimension Jump Lv.1]
- [Item Box Lv.1]
- [Appraisal Lv.1]
- [Shop Lv.1]
- [Superhuman Intelligence Lv.1]
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Seeing this, he more or less understood everything that was happening to him.
Another thing. He felt abnormally calm. Although curious about various things, he accepted it very easily.
With quick tests, he understood most of his skills, except for 'Dimension Jump'.
The 'Item Box', he had a huge space. When he went to store or retrieve something, it was like looking from above, as in a game. With his thoughts, he could move and pick up anything from there.
Appraisal is self-explanatory. He could see the information of items, possibly of people too.
Shop gave him access to various things. He only needed to know about X item and search in the shop to buy. From food to even weapons.
However, he still hadn't figured out how to earn money to spend in the shop.
And last, but not least, was the intelligence inherited from Tony Stark.
He didn't inherit the memories. Which was a shame. But Tomoya didn't lament this fact. Having or not having Tony Stark's memories doesn't change the fact that, with Superhuman Intelligence, he gains an advantage in various situations.
...
After taking a shower, eating, and brushing his teeth, Tomoya sat on the living room sofa.
His apartment had a total of 4 rooms: a bedroom, a bathroom, a small kitchen, and a living room.
*Tap! Tap! Tap! Tap!*
He was furiously typing on the laptop's keyboard.
After reading an online book about programming, he was testing how much he could do on his own.
The result was: He created a game in less than an hour.
Of course, it was a simple 2D game.
However, the fact that he managed to do this after reading a programming book just once made him understand better how ridiculous his current intelligence had become.
Afterward, he read about editing.
When he tried, he easily managed to edit and create a video featuring characters from various different animes and posted it on YouTube.
'Okay, I tested enough.' He snapped his fingers and grabbed the coffee cup beside him.
...
It was late afternoon, Saturday.
Tomoya had finished testing all the ideas he had. He tried selling items to the shop, putting in money, jewelry, etc.
But none of them generated money in the shop.
'If it doesn't work with things from my world, maybe from another dimension?'
This was, after all, the Dimension Jump System.
That said, it wouldn't be strange if it only worked in a dimension that wasn't his.
'Should I take the risk?'
The thought of it made him feel a bit of fear, but also excitement.
The curiosity to explore a different dimension was enticing.
Although he didn't have any weapons for self-defense, he grabbed a large kitchen knife, a hammer, food, and other things and put them in the Item Box.
Even if this didn't provide much security, it was better to have something than nothing.
Before he could use the skill, he received a message. It was from his paternal grandfather.
[You're 18 now, you won't receive a single cent from us anymore.]
Seeing this, he laughed and stored the smartphone in the Item Box.
There was no reason for him to bother responding.
Since he was expelled from the Yamano family, his maternal grandparents had been helping him.
His maternal grandparents were American and sent him two thousand dollars a month. That amount, converted to yen, was more than 250,000 yen monthly.
With that, he managed to rent a good apartment, buy food, pay for school, etc. There was even money left over.
When he finished doing what he wanted, he tried using 'Dimension Jump'.
When he did, he felt a strange connection with some kind of energy mass.
He felt that if he reached out and touched it, he would be teleported to another dimension.
Strangely, when he touched the energy mass, he didn't teleport right away. Instead, he saw the head of a gigantic red dragon, but he ignored it soon after.
When he was ignored by the great red dragon, the energy mass engulfed him.
...
A gray bear and an 18-year-old human stared at each other.
'How can I be so unlucky?'
Although he thought this, Tomoya was very calm.
The gray bear in front of him was standing on two legs. It must have been about 4 meters tall.
In each of Tomoya's hands, a large kitchen knife magically materialized.
"Roar!!"
At the gray bear's roar, Tomoya moved.
His movements were agile; he quickly dragged his foot without really touching the ground, and when he pulled his foot back, it seemed like he had moved instantly.
It was a movement typically used in street dance, but he applied it now.
In the spot where he had been, a sphere of water was shot from the gray bear's mouth and hit the tree right behind.
If Tomoya hadn't acted quickly, he would surely have been hit and wouldn't have come out unscathed.
He thought: 'As I suspected, this is a world where magic can be used. Even a random gray bear can do it.'
Looking at the hit tree, he saw that although it shook a lot, the real damage was equivalent to the impact of a compact car at 50 kilometers per hour.
Powerful, but it would hardly kill him with one attack.
And the time to launch a new attack was long.
In his analysis, the gray bear 'chewed mana,' transforming it into water and shooting it with its mouth.
When the gray bear realized the attack had failed, its two front paws dropped to the ground, and it ran on all fours toward Tomoya.
Seeing this mountain of gray fur running toward him, considering the short distance, Tomoya pretended to be cornered by moving and positioning himself with his back to a tree.
Besides street dance, Tomoya liked other dance styles and had even learned a bit of boxing.
However, besides being able to move agilely, it didn't help much with attacking.
He couldn't just punch a gray bear that could use magic, could he?
When the gray bear charged at him with its right claw, Tomoya, who was waiting for this, moved to the right side, creating considerable distance, and attacked the bear's paw with the large kitchen knife.
'So tough!'
His strike barely penetrated the bear's skin and was stopped from advancing further when it hit the bone.
A shallow, superficial wound that only served to enrage the gray bear.
He had to exert a lot of force just to pull the large kitchen knife back.
Quickly jumping backward, he positioned himself behind a tree.
The gray bear roared like a wild beast. Its initial momentum became more aggressive.
Tomoya's foot dragged on the ground. He was testing something when the gray bear charged with its claw toward him.
It wasn't slow. Tomoya himself wasn't fast. However, he managed to calculate every movement of the gray bear, and when he found himself cornered, he actually rolled under the bear's large legs as it rose to attack with its claw and kicked its rear with all his strength.
However… It was like trying to knock down a concrete wall. The gray bear only swayed a little.
'As expected, there's a gigantic strength difference between us.' He thought, livid.
Since he couldn't push the gray bear, he used the bear itself to propel himself backward, going into the air with a backflip.
When his feet touched the ground, he started running and used 'Dimension Jump'.
This time, he saw several white energy masses. They were growing energy masses.
The strange thing was that the moment he touched one, he saw the space inside the energy mass as his apartment. From a top-down view, he instinctively knew that if he wanted, he could return to any room in the house and chose the living room.
When he finished, his body began to glow, and in a flash of light, he disappeared just as the gray bear was about to reach him.