On Earth before Polusalino crossed, the world's first laser was produced in 1960. The scientist used a high-intensity flash tube to excite the ruby. Due to the properties of the ruby itself, when it is stimulated, it emits a red glow.

The scientist then drilled a hole in the surface of a mirror-coated ruby so that red light could escape from the hole, creating a fairly concentrated column of slender red light that, when directed at a certain point, could reach a temperature higher than the surface of the sun.

The scientist's name is Theodore Mayman, and Theodore Polusalino, who now calls himself a scientist in the Pirate World, intends to do the same.

For Polusalino, a powerful light source is his strength. Rather than scientists who can only make luminous objects, he can become the best light source in his own right - not only powerful, but also controllable.

It's just that when it comes to the next question, Polusalino has a bit of a headache - how can he keep the light he emits from diverging and then highly concentrated?

It's actually a lot more difficult than it sounds - Porusalino tried it in his dorm room on the first day of the crossing.

To give a more vivid example: after Polusalino eats the glittering fruit, the countless photons he can control are like a group of rangers. If they encounter a physical attack, these rangers will flee on their own without his orders, which is the passive elementalization of the Shining Fruit.

And once he activates the ability of the Shining Fruit, that is, when he gives orders to the Rangers. If the content of the order is relatively sketchy, such as "glow" or "shine", then this group of rangers can understand his meaning very well and give him enough face - isn't it just glowing? We do it, and we shine brightly.

But if he tries to use his fingers to emit lasers, his instructions become incomprehensible and unreasonable for these photons.

"Go to my fingers, one part of it is concentrated and emitting a strong light, and it is not allowed to diverge!" - Commander Polusalino

"Where are you going? Why did you just go to your fingers? "Thorn-headed Photon Soldier A.

"Why are you only allowed to let some of them shine? You're photon discrimination! "Punch out Photon Soldier B.

"What, what? What do you want us to do? "Confused Photon Soldier C.

"I'm going to shine! I'm going to shine! "Ordinary Photon Soldier D.

………

This description, while somewhat exaggerated and abstract, is a true reflection of the difficulties that Porusalino faced when trying to unleash the laser. To solve this difficulty, he must start with the photons themselves.

So how do you start with the photons themselves?

Polusalino thought about it carefully, and probably went something like this:

- Piercing photons? Cut it.

- Confused photons? Education leads to it.

- Ordinary photons? Train it a lot.

- Heavy punch photon? 'Light' Taoism destroys it.

After deciding on these basic principles, Polusalino closed his eyes, controlled himself into elementalization, and began to try to perceive and transform the countless photons he had become with his spirit.

……

Unbeknownst to Polusalino, he carefully dressed Sakasky on the bed while he was developing his fruit abilities in the "Ability Development Laboratory" of his dreams. After glancing at him for a few moments, who was still asleep, Sakasky walked out lightly.

It was about one o'clock in the morning, two hours before the two agreed to eat supper. The reason why Sakasky got up early and came out alone was not because he was too hungry to eat alone, but because there were images in his mind that made him unwilling to continue sleeping.

The scenes on the training ground during the day flashed back to his mind like a movie - Colonel Malvern with overwhelming strength, Polusalino with far more flexibility and physical strength than himself......

In fact, Sakasky, who has always been very proud, took a deep breath and involuntarily clenched his fists.

"Sakaski? What are you doing here? ”

Suddenly, a voice from behind him interrupted Sakasky's thoughts. He turned his head to follow the voice, and found Colonel Malvern, dressed in a black casual suit, looking at him in surprise.

"Colonel Malvern."

Sakasky said hello with some rustiness.

"What are you doing here? It's the middle of the night, haven't you slept yet? ”

"I slept for a while, I felt like I couldn't sleep, so I got up."

Sakasky replied succinctly—only then did he realize that he had inadvertently walked outside the branch base in his thoughts.

"Can't sleep?" Colonel Malvern smiled, "Is it because of the day's training?" ”

“…… Almost. What about you? Colonel Malvern, why are you here in the middle of the night? ”

"Night Run,"

Colonel Malvern shrugged, "I'm an old man, I need to exercise more." ”

“……”

Sakasky did not speak, he had little interest in Colonel Malvern's sense of humor.

Marven was not embarrassed, and still had a smiling face: "How is it?" Do you want to go for a night run together? ”

“…… Well. ”

Considering that he had nothing to do, Sakasky nodded.

The two of them jogged along the periphery of the branch base one after the other, but they said that they were one in front of the other, but in fact, they were half a mistaken. Colonel Malvern in front and Sakasky in the back.

"Do you know why I didn't use the training ground and came here for a night run?"

"Why?"

"Look at your right-hand side."

Sakasky looked to his right, a little puzzled, "Is there something wrong with this sea?" ”

"Hahaha, no, this sea is normal,"

Colonel Malvern laughed, "But don't you think running at night in the sea breeze is ten thousand times better than running on the training ground?" I often work on my fitness here. ”

"It's pretty good,"

Sakasky affirmed seriously, "But not ten thousand. ”

"Hey, hey, you guy, you have a little bit of a sense of humor." Marven glanced at Sakasky, who was running diagonally behind him, "Then again, I haven't even asked you, how do you feel about today's special training?" ”

Sakasky was silent for a while: "Colonel, you are strong, and Polusalino is also strong. ”

"Hahahaha,"

Colonel Malvern in front of him laughed out loud as if he had heard something extremely funny, "I'm strong? Sakasky, do you know where I used to be a marine? ”

"I don't know."

"The Sengoku Admiral of our Navy Headquarters, you should know. When he was only a rear admiral, I was on his ship. ”

Colonel Malvern said in a tone of reminiscence, "I was the quartermaster on his ship back then. ”

"Quartermaster?"