Anime: Fight Sukuna at the beginning?

In Fang Yi's eyes, victory is a rigorous and scientific thing, and the process of defeating the enemy is more like the process of solving a puzzle.

There are naturally many solutions to the puzzle, but once you find a formula that meets your own conditions, fill in the conditions required by the formula, and conduct reasoning and argumentation, then victory will naturally be at your fingertips.

Obtaining enemy intelligence, speculating enemy movements, predicting the opponent's trajectory, and sensing the opponent's threatening moves and knowing the opponent's trump cards are all pre-conditions for finding victory.

As long as all the conditions are collected, the winning formula will naturally come to mind. Fill in the conditions you have, and then you just need to choose a plan.

But Fang Yi is a very greedy person and a perfectionist. He hates losses, or in other words, as long as he has a choice, he doesn't want to sacrifice some people who are kind to him to achieve his goals.

He prefers to play a perfect ending and save everyone at the same time, even if it means increasing his own burden, but he is also happy to do so.

[I have no regrets in my previous life. After rebirth, I still choose boring and ordinary options like ordinary people. Why do it again? ]

[Since I have unique intelligence in my head, and I have so many advantages, and I still have this talent, I must play a better and more perfect ending]

[Because I am Fang Yi, this is the oath I made and the promise I made, so I will definitely complete it and find the best solution among countless options]

Fang Yi looked at the enemies in the field, and the world slowed down again in his eyes, as if time had stopped, giving him enough time to think, just like when he stepped out of the base, saw the enemies on the street, and saw the sword of Yao Yue.

Under the influence of this ability with unknown activation conditions and currently unknown effects, he has enough time to think about what he can do, find a solution, and then complete it.

After one-third of a second, the thunder of [Accumulated Rage] will fall and block his position.

After one-half second, Chen Cheng's sword will touch his body.

After three-quarters of a second, the spear of [Ai Jue] will block the position around him.

One second later, the blood demon art of Upper Rank Five, Jade Pot, will take away the life of Mitsuri Kanroji who is trapped in the [Blood Demon Art, Blood Prison Bowl] and cannot move.

One and one-third seconds later, [Cola] will also fan out a strong wind to compress the evasion space of Rengoku Makijuro and Nakamori Yuto, and [Koraki]'s claws will soon touch the body of Nakamori Yuto who is already seriously injured and unable to dodge.

And I can only choose one of them to solve it.

Of course, no matter which option I choose, I will not die, but it means exposing the resurrection ability of [Five Emperors' Coins] in front of the ghost, letting Muzan Kibutsuji know this trump card, and it is not easy to trick this cowardly and despicable ghost king.

At the same time, there is a very small probability that [Reversal Technique] will not be able to save teammates.

It is probably about 0.01%, which is lower than the probability of some surgeries.

So is it possible to complete all of the above things at the same time?

Fang Yi was thinking in his mind. Although he had originally planned to use the [Five Emperors' Coins], he was trying to find a better plan at this time.

After a moment, he remembered that there was a sword skill used by a mortal that he could try to learn from.

Since at this moment, he had already thought of a method, and he also met the conditions for use and knew the principle, then in theory he could use it, but he just needed to master this technology and build a "reasoning" process.

Under the effect of this unknown skill, Fang Yi had a premonition that his move this time could skip the reasoning process and directly get the "answer" to victory.

Since there is such a better option, there is no need to use the plan A of resurrection using the [Five Emperors' Coins].

——

The solution that Fang Yi thought of at this moment was to use the principle of [Secret Technique·Swallow Return] out of thin air in a state that can only be encountered but not sought, and first solve [Ai Jue], Chen Cheng, and Yu Hu at the same time.

Then after this move, find an opportunity to kill [Kong Xi] and [Cola], and use [Reversal Technique·Strengthening] to treat Nakamori Yuto who was about to die.

[Secret Technique: Swallow Return] is a sword technique that seems to block the enemy's actions by swinging three swords while holding your breath, but in fact, this sword technique involves ignoring the concept of space and time.

Although the heroic spirit who is nominally Sasaki Kojiro, who calls himself a mortal, thinks so at the same time.

"Actually, this is not a powerful move."

"It's just that when I accidentally wanted to cut off a flying swallow in the air, I mastered the [technique]."

"The sword in my hand is just a straight line. It is impossible to catch a flying swallow in the air."

"However, if there are two or three such [lines], it will be different."

But this "technique" of cutting flying swallows in the air is actually attached with the [Multi-dimensional Twist Phenomenon], which touches the magic category of the parallel world, the Type-Moon world [Second Law].

The principle is speculated to be that at this point in time, the basic world self cuts a vertical sword, and at the same time goes to the parallel world 1 at this point in time to cut a horizontal sword, and finally goes to the parallel world 2 at the same time to cut a sideways sword.

The three combined together formed the three swords that I swung at the same time in the basic world.

It was much more difficult than what Sasaki Kojiro himself said in his training process, "You need to hold your breath and combine them to do it."

Then, since I already know the principle, I am also a mortal, and I have mastered swordsmanship, so I can use this unknown temporary state to do the same thing.

——

Looking at the hideous and terrifying [Ai Jue], Fang Yi's heart was calm. The spear was still half a meter away from him. He used [Blood Demon Art·Eye Hidden] to capture the other party's strange trajectory in advance.

There was a hint of cunning and fierceness in [Ai Jue]'s eyes, but in Fang Yi's view, it was just a meaningless struggle.

Fang Yi's movements were as fast as lightning, and he swung a knife along the ghost's neck elegantly and lightly.

In an instant, the knife light passed through the air like mercury, carrying a deadly chill.

This ghost's level is slightly higher than the lower string, but a little worse than the upper string six. In a one-on-one situation with Fang Yi, it is quite weak.

Fang Yi has countless plans to kill him, so just pick one.

[This is the first knife]

After dealing with [Sorrow] and returning to the original time point, Fang Yi looked at Chen Cheng who was sprinting towards him, his eyes narrowed slightly, and he began to silently comment on his opponent in his heart.

Chen Cheng is not a good-looking person, with ordinary or even slightly ugly facial features, nothing special.

But it must be said that his strength should not be underestimated. His sword skills are very solid. When they fought before, he was sharp and experienced, showing years of hard work and practice.

"Chen Cheng's sword skills are indeed not simple." Fang Yi thought secretly in his heart.

He knew clearly that facing such an opponent, he could not be careless at all.

[Blood Demon Art·Eye Hidden] could not capture Chen Cheng's figure, and [Fighting Qi Perception] could barely perceive it, but the information provided by the above two skills was not enough.

But he could still see the opponent's muscle movements, so he could infer the opponent's actions.

Since he already knew the opponent's actions, there would naturally be a corresponding solution.

In this state, even in a one-on-one situation, there were only three ways to kill Chen Cheng.

And these three methods all require a certain price without exception.

[Then choose the one with the highest cost]

Fang Yi turned sideways and faced Chen Cheng's charge. He swung his sword at the cost of his mask being shattered by the opponent's sword.

This sword was ordinary, without dazzling cold light or any gorgeous special effects. It was just a casual swing, and the blade cut through the air and pointed directly at Chen Cheng's throat.

The speed and strength of the swing were controlled by Fang Yi just right, without any extra force or any drag.

[This is the second sword, and there is still a chance for the last sword]

——

Fang Yi looked at the Upper String Five · Jade Pot in the distance, estimated the distance, and thought about how to deal with it and save Ganlu Temple Mitsuri at the same time.

The Upper String Five · Jade Pot is still in its initial form.

The body of the Jade Pot is connected to the pot, and the upper body is muscular, but there are no arms. Instead, several small arms grow from the head and other places.

In this state, it can move in space between its own pots.

But this demon has poor perception ability and is arrogant and conceited, which makes him a shameful upper-rank demon.

In the original work, he is the only upper-rank demon who was killed by a ‘pillar’.

Now he is admiring Mitsuri Kanroji who is about to suffocate in the water ball of his [Blood Demon Art·Blood Prison Bowl], which distracts Fang Yi’s attention and gives him a chance to kill him with one sword.

This demon has a habit of admiring the bodies of drowned people, so he didn’t kill Mitsuri Kanroji immediately.

Because the swordsmen of the Demon Slayer Corps need breathing techniques to instantly enhance themselves, if they are wrapped in a water ball and there is a lack of oxygen in their lungs, they naturally have no ability to resist, and thus cannot exert their combat power. Without help, they can only wait for death.

Looking at Rengoku Chijuro who tried to destroy the water wall of [Blood Demon Art·Blood Prison Bowl] with a knife.

Fang Yi instantly understood that Mitsuri Kanroji, who looked physically strong, was tricked to protect Rengoku Chijuro.

She still had the nerve-paralyzing stings that Yu Hu had spit out with [Blood Demon Art·Thousand Needles·Fish Killing], which caused her to be trapped by [Blood Demon Art·Blood Prison Bowl] and about to drown.

[Then take off Yu Hu's head with one knife and cut through the water wall at the same time]

Chen Cheng had just demonstrated the use of the "real full concentration" of the breathing method. It doesn't seem difficult, so just use it directly.

Fang Yi was ready to go, his eyes were like lightning, and his breath was condensed in an instant.

His body seemed to merge with the air, and suddenly, the whole person disappeared.

The next moment, he appeared behind Yu Hu and took the opponent's head with one knife.

The knife flashed, and Yu Hu, who was still admiring the drowning Ganlu Temple Mitsuri, had no time to react. A fatal wound had appeared on his neck, and blood gushed out like a spring.

As Yu Hu's head fell, the world in its eyes was about to turn upside down.

Fang Yi was originally going to let Kanroji Mitsuri fall freely and save Nakamori Yuto.

However, when he turned his eyes to Nakamori Yuto, he found that the opponent's sword was ignited with blazing sparks, and the blade gradually turned red, as if absorbing energy from the air.

Nakamori Yuto stood there, his eyes firm, his hand holding the sword trembling slightly due to the gathering of power, the sparks on the blade kept jumping and began to burn, and he was about to kill the two Hantengu clones.

[You opened it too? Then I don't need to do it]

Fang Yi chose to take Kanroji Mitsuri out of the water, turned to Chen Cheng to show his face, and prepared to appreciate Chen Cheng's expression.

[Then, let's start overlapping]

The world in Fang Yi's eyes has returned to normal.

Sasaki's Yan Hui is actually not as strong as Fang Yi this time, and the effect this time

It also references the effects of the Philadelphia shooting created by President D4C of SB.

At the same time, the users of the second method are unique, that is, there is only one square meaning in all parallel worlds.