In the current world, it is the data that visually quantifies a combatant's attack power, without considering Haki or Devil Fruit abilities.
An ordinary adult male, after some simple Marine training, has a Doriki value of only 10.
For example, the chief of CP9 on Enies Lobby (Judicial Island), the famous measuring unit Spandam, only has a pitiful Doriki value of 9.
In the Marines, Doriki is a reference value used to measure the strength of the lower and middle-ranking Marines.
And at the Marine School led by Zephyr, the Doriki test is also an assessment indicator for the cadets.
The minimum standard for entering the Marine School is Doriki 80, and the minimum standard for graduation is 500, with no upper limit.
Of course, the Doriki value is only one of many graduation standards; in addition to personal combat strength, other aspects are also examined for graduation eligibility.
Before long, Zephyr led Yoriichi Tsugikuni to an open area. Standing before Yoriichi Tsugikuni was a huge stone slab measuring 5m x 5m x 5m. On the side of this slab was connected a small display screen, which currently showed the number "0".
Zephyr walked up to the slab, gently knocked on it with his hand, and said to Yoriichi Tsugikuni:
"Yoriichi, this is the 'instrument' for testing Doriki value."
"This entire stone slab is made of Kairōseki (Sea Prism Stone), making it incredibly hard. The force you transmit when you strike this slab will be converted into a Doriki value displayed on this monitor."
"Look, like this."
As he spoke, Zephyr extended two fingers, and with a seemingly light tap on the slab, as if knocking on a door, the enormous slab actually let out a muffled sound and was visibly pushed back by several centimeters.
"Dong!!!"
As the sound faded, the value on the monitor next to Zephyr jumped wildly, finally settling at 1213, and then stopped.
Zephyr seemed very satisfied with his demonstration, a smile on his face. Ten seconds after the value was displayed, the huge slab began to slowly move back to its original position, as if it had a spring mounted behind it.
Yoriichi Tsugikuni's attention was drawn by the novelty of the scene. It was the first time he had seen something that could directly measure attack power.
However, looking at the massive slab, Yoriichi Tsugikuni couldn't help but feel strange. How could an ordinary person possibly move such a huge slab?
Zephyr had only pushed the slab back a few centimeters, and the value displayed was only around 1200. If it were an ordinary person, they wouldn't even be able to get a reading, right?
"Come on, Yoriichi, give it a try. Use your strongest attack!"
Zephyr smiled, pointing to the slab and signaling Yoriichi Tsugikuni to step forward.
Filled with curiosity, Yoriichi Tsugikuni approached the slab, took a simple horse stance, and then immediately threw a punch, smashing it hard onto the slab.
A massive force was unleashed onto the slab, yet the slab remained completely still.
However, the value on the display next to Zephyr began to jump, finally stopping at 520.
"Hehe, is this all the level you're at?"
Zephyr looked at the value on the monitor, speaking these words, but his eyes towards Yoriichi were full of amusement.
Just then, Yoriichi Tsugikuni suddenly took a step back and abruptly drew the long katana from his waist.
"Hoo~~"
Adjusting his breathing slightly, Yoriichi Tsugikuni directly swung his sword at the slab. The black blade was surrounded by a bright red flame, casting a red glow on Yoriichi Tsugikuni's young face.
Sun Breathing: Third Form - Blazing Crimson Mirror!
"CLANG!!!!"
A horizontal slash was unleashed. Unlike the muffled thud before, the moment Yoriichi Tsugikuni's katana struck the Kairōseki (Sea Prism Stone), it emitted a crisp sound like metal striking metal.
The massive slab was visibly pushed back by several meters before finally stopping.
At this moment, the value on the monitor next to Zephyr had jumped to 5333.
Zephyr turned his head. The moment he saw this value, his expression clearly froze, though the surprise was fleeting. Soon, Zephyr's face returned to normal, and he said lightly:
"Hmm, passable. Not bad."
Although his mouth said this and his face was calm, inwardly, Zephyr was already experiencing a tidal wave of shock.
What did a Doriki value of 5000+ mean? To put it this way, most of the Marine Vice Admirals, excluding those with Devil Fruits, only reach the range of 2000-4000. Not counting Garp, only the top-tier Vice Admirals barely reach 5000.
Luffy in Gear Second during the Enies Lobby arc, if assessed by Doriki, would be just over 5000. At that time, Luffy was already considered a major pirate, having defeated two Warlords of the Sea and later being labeled one of the Worst Generation.
Undoubtedly, a Doriki value of 5000+, even across the entire sea, could not be considered the strength of a nobody.
But now, a teenager casually picked up by that guy Garp possessed such terrifying power. Zephyr couldn't help but be astonished.
However, to maintain his image as the "Teacher," Zephyr remained outwardly composed.
"Yoriichi, you must train well from now on."
"A Doriki value of merely five thousand is still far from enough."
"When you can achieve a level like mine, you'll barely be ready to venture out to sea."
As Zephyr spoke, he once again stood before the Kairōseki slab, took a deep breath, built up his strength, and suddenly threw a punch at the slab in front of him.
"Dong!!" Following a muffled thud, the Kairōseki slab flew back over ten meters. The monitor next to Zephyr jumped up to 7000 before stopping and turning into the garbled code of 00000.
"Crack!" Just then, the retreating slab seemed to hit its limit, letting out a faint sound of unbearable stress. The device connecting the slab to the ground seemed to have broken, and the slab tumbled and rolled further away.
"To move this slab, you need at least Doriki 1000. Someone at my level is barely at the Doriki 10,000 level."
"Kid, you still have a long way to go. From now on, follow me and train hard. I will cultivate you into an excellent Marine."
Zephyr smiled, looking at the dumbfounded Yoriichi Tsugikuni.
"Come on, I'll show you something else. Starting tomorrow, I will personally train you."
Then, Zephyr ignored the smoking Doriki testing device he had just broken and led Yoriichi away without looking back.
A short while after they left, a Marine School instructor hurriedly arrived. Looking at the chaotic scene, he remained silent for a long time.
Throughout the entire day, Yoriichi Tsugikuni followed Zephyr, listening to him introduce the Marine School. Not only the school, but in the afternoon, Zephyr also took Yoriichi Tsugikuni on a tour of Marineford.
Along the way, Zephyr met many acquaintances: old comrades, disciples, and Marine officers who admired him. Zephyr was in excellent spirits today, greeting everyone and introducing Yoriichi Tsugikuni to his old friends.
"Oh! XXXX, you're back?"
"Ah! This kid? He's my new disciple."
"Strength? Passable, just barely. He only managed a Doriki value of over 5000 on the first day's test. He's still very green."
Yoriichi had lost count of how many people Zephyr had said the same thing to. While marveling at Zephyr's extensive network, Yoriichi Tsugikuni also generally familiarized himself with Marineford.
In the evening, Yoriichi Tsugikuni, who had spent the entire day moving around with Zephyr, returned home. He sat on the corridor outside his room, leaning against a pillar, gazing up at the night sky.
"The night sky of this world is deeper than the previous one..."
"And the stars are brighter!"
(End of Chapter)