Joining the Public Security was entirely beneficial for the Yamai sisters.
Wearing the identity of Devil hunters not only allowed them to act without hindrance in this world, but it also helped accelerate the completion of their main and side quests.
After all, the tasks assigned to them in this world were completely centered around combat.
Side Quest 1: Fight Devils.
Side Quest 2: Fight Weapon Men.
Side Quest 3: Fight the Gun Devil.
Wearing the identity of Devil hunters also provided them with the perfect excuse to hunt Devils.
Not to mention the opportunity to interact with Weapon Men.
On their first day joining the Public Security, they fought against Denji, who was one of the Weapon Men, in the form of Chainsaw Man.
The outcome was without surprise.
The Yamai sisters easily pinned Denji to the ground and wiped the floor with him twice.
Although Chainsaw Man had a lot of potential, Denji was still in the early stages of mastering his power and fought purely with brute force, making him an easy target for the Yamai sisters.
Half a month passed in the blink of an eye.
The Yamai sisters successfully integrated into the Public Security Anti-Devil Division, Section Four, and, like the other members, patrolled the streets as normal.
"Report, there are no traces of Devils in the area."
In the sky above Tokyo, Yuzuru Yamai scanned the area, checking the surroundings within a ten-mile radius.
Below her, Denji, bound by Raphael: El Na'ash, looked like a dried-out salted fish unable to struggle.
"I'm telling you, can't we just patrol normally?"
Denji, with his dead fish eyes, gazed down at the city beneath, saying blankly, "If you're not careful and I get caught tighter, I'll fall and turn into mush."
"Don't worry, Yuzuru will be careful."
Yuzuru Yamai wasn't interested in listening to his complaints. She merely tightened the chains a little more, saying, "If you do fall, Yuzuru will be responsible for pulling the ring on your chest."
As a Weapon Man, Denji had an immortal trait.
No matter if his neck was snapped or his body was cut in half, as long as the ring on his chest was pulled, he would transform into Chainsaw Man and fully revive.
In a sense, Weapon Men were true berserkers.
But it still hurt, to say the least.
Looking around and seeing no signs of Devils, Yuzuru Yamai flew to other parts of Tokyo.
Denji felt the world spin around him.
His stomach churned.
"Ugh—!"
Finally, unable to resist the urge to vomit, he threw up the breakfast he had eaten earlier but hadn't yet digested.
"Mom, a rainbow!"
A child passing by pointed at the strange sight in the sky, tugging at his mother's sleeve in excitement.
However, when the mother saw what was falling, her face turned pale, and she hurriedly tried to pull her child away.
But it was already too late.
Yuzuru Yamai, holding the vomiting Denji, continued flying smoothly above Tokyo.
Wherever they passed, there were sounds of groans and curses.
"Question, is Denji feeling unwell?"
Finally noticing Denji's weak condition, Yuzuru Yamai found a nearby tall building and lowered him there.
But Denji, still trying to act tough, weakly patted his chest, indicating he was fine.
Inside, he had cursed Hayakawa Aki several times.
For the Anti-Devil Division members, patrols were usually conducted in pairs, and the teammates weren't fixed.
Today was his first time patrolling with Yuzuru Yamai; previously, he had always patrolled with Kaguya Yamai.
"That bastard Aki, no wonder he always wanted me to switch teams with him," Denji thought through gritted teeth. "Who could stand this kind of patrol? When I get back, I'll make sure Power takes revenge on him!"
After taking a few deep breaths, his breathing gradually steadied.
Seeing that Denji's condition was a bit better, Yuzuru Yamai prepared to restrain him again.
"Wait!"
Denji quickly moved, raising both hands to stop her, "Can't we just patrol like normal people?"
Yuzuru Yamai tilted her head, seemingly not understanding his point.
"Like normal people, just walking with two legs on the street, how about that?"
"Refusal. Denji's speed is too slow. Yuzuru doesn't have the time to waste walking."
"Why?"
"Answer, so far, Kaguya Yamai has killed 8 Devils, but Yuzuru only has 6. If this keeps up, Yuzuru will lose to Kaguya Yamai when the results are announced at the end of this month."
"Ah... you mean that scoring system?"
"Definitely."
Denji knew a little about the scoring system.
Or rather, everyone in the Anti-Devil Division knew about it.
After the Yamai sisters joined the Public Security, Makima set up a scoring system specifically for them. Denji didn't pay much attention to it, only knowing that it seemed to be established to determine who among the sisters was the strongest Wind Devil.
"By the way, is winning really that important?"
Denji sighed and wiped the vomit off his mouth. "To me, it's just a waste of time. Why bother fighting for that title of Wind Spirit Yamai? You can just be Yuzuru, Kaguya can just be Kaguya, and you can live like that. Isn't that fine?"
"Definitely. The name Wind Spirit Yamai is the most important thing to both Yuzuru and Kaguya Yamai."
"Maybe."
Denji shrugged.
Even after half a month of interacting with them, he still had many doubts about the two sisters.
Although, as Devils, they were unusually friendly, much more so than troublesome beings like Power.
And their figures were pretty impressive too.
One was bigger than the other.
Their behavior and personalities were a bit strange, but they were both very good women.
That was Denji's evaluation of them.
"So, once you two actually decide the winner, what are you planning to do next?" Denji continued. "Devour the other and become the only Wind Devil?"
"..."
Yuzuru Yamai didn't answer.
It was as though she had never even considered that question.
"Answer: Yuzuru doesn't know." She honestly replied, "When Yuzuru and Kaguya Yamai were born, the voice in our minds told us that the existence of Yuzuru and Kaguya Yamai was a mistake, and we must merge again to bring forth the true Wind Spirit Yamai."
"But what happens if you don't merge?"
Denji waved his hand, seemingly too lazy to listen to this nonsense. "Will the Earth explode? Will the universe be destroyed? Nothing will happen, so instead of thinking about all that, why not think about what we'll eat tomorrow morning?"
"Negative, Denji doesn't understand the matters between Yuzuru and Kaguya Yamai. Please do not make assumptions."
"I may not understand what's going on between you two, but there's one thing I do understand."
Saying this, he pointed to his own heart.
"Even Devil May Cry when they lose their loved ones"