Brain Assembles Mahjong

Transmigration, dual souls inhabiting one body, and now a system... there were too many elements; his brain was about to fry.

What is this, a mahjong game?

"System?" Tobirama keenly caught the term.

"Is it a manifestation similar to a contract jutsu or a spiritual link... Interesting, let me analyze its structure."

"Forget about that for now!" Izuna interrupted him, then looked at Qingyu. "Kid, you mentioned the Chunin Exams just now? When are they?"

"To, tomorrow..."

"What about your strength?"

"Theory... barely passing. Taijutsu... passable. Ninjutsu... I only know the Three Body Technique and a little bit of Fire Style."

"How much is 'a little bit'?"

"It's... the kind that just sparks a tiny flame..."

Izuna and Tobirama fell silent simultaneously.

The look in their eyes was like a Michelin-starred chef watching someone turn top-tier Wagyu beef into a rubber eraser.

It was a mix of disdain and pity, and within that pity, a deep confusion of "how have you survived until now with this level of skill?"

What kind of expression is that? Isn't the Uchiha's little flame a mechanism!

After a long while, Izuna took a deep breath, though it was obvious that souls didn't need to breathe.

"Listen, kid." His voice carried the helplessness of someone who felt they had hit rock bottom.

"Starting tonight, special training! First, your embarrassing Fire Style—"

"Foolish," Tobirama said coldly.

"With his current chakra control, forcing Fire Style practice will only damage his meridians. He should start with the most basic physical training and chakra control, progressing step by step."

"Chakra control?" Izuna sneered.

"What kind of delicate control does the Uchiha fighting style need? It's about burst! Power! Defeating the enemy in one strike!"

"That is exactly why you died so early in the Warring States period," Tobirama retorted.

"You had no tactical mind, relying purely on your Kekkei Genkai to charge in recklessly."

"Who are you calling dead early?! You sinister, experimental-obsessed white-hair!"

"Whoever answers is the one I'm talking about."

Seeing the two (souls) about to argue again, Qingyu hurriedly raised his hand. "Um... can I say something?"

Both of them turned to look at him at the same time.

"The exam is tomorrow," Qingyu said weakly.

"I'll die of exhaustion if I train all night..."

Since that's the case, I should probably just go to sleep~

"Then we start now!" Izuna and Tobirama said in unison.

When his consciousness returned to reality, the sky outside the window was still dark.

But Qingyu could no longer sleep.

Not only could he not sleep, but he was also being urged by two Warring States legends to sneak out of the house and run to the Uchiha Training Ground.

It was actually an abandoned small training ground on the edge of the clan grounds, where no one usually went.

"Start with chakra perception," Tobirama's phantom appeared in Qingyu's mind.

"Cross your legs, close your eyes, and feel the flow of energy within your body."

"Waste of time," Izuna snorted.

"Practice shurikenjutsu directly! The foundation of the Uchiha is shurikenjutsu and Fire Style!"

"The foundation is staying alive," Tobirama said coldly.

"In his current state, he wouldn't survive the first day in the Forest of Death."

"That's why he needs to practice actual combat!"

"That's why he needs to build a foundation!"

"You two..." Qingyu sat on a rock at the edge of the training ground, listless. "Can you reach a consensus first? Whose advice should I actually follow?"

The air was silent for a moment.

Then, both of them spoke at the same time:

"Listen to me!"

"Listen to me!"

Great, asked for nothing.

In the end, Qingyu decided... to practice half of each.

The first half of the night would be spent listening to Tobirama, practicing chakra control and basic physical conditioning.

The second half of the night would be spent listening to Izuna, practicing shuriken throwing and fire release nature transformation.

"Gather your chakra at the soles of your feet! I didn't tell you to stomp! Imagine you are a leaf, landing lightly upon the surface of the water..."

This was Izuna teaching the Uchiha Style footwork.

"Incorrect. You must first construct a chakra cycle, starting from the dantian, flowing through the limbs, and returning to form a stable current..."

This was Tobirama teaching the Senju Style chakra control.

"Don't you interrupt me!"

"It is your method that is wrong!"

"Focus your spirit! Imagine the flames flowing through your meridians!" Izuna taught fire release.

"First, perceive the moisture in the air! The foundation of water release is affinity, not brute force!" Tobirama taught water release.

"His body is fundamentally unsuited for water release!"

"It is your teaching method that is the problem!"

Throughout the night, Qingyu suffered through the sounds of two completely contradictory teaching styles...

"Step on the tree! Stomp hard! Uchihas don't need any damn leaves!"

"Wrong, do it again! The chakra output must be a smooth sine wave..."

"Shut up, you damn White-Haired Senju!"

"You shut up, you evil Uchiha!"

In the latter half of the night, Qingyu attempted a compromise: circulating both fire-attribute and water-attribute chakra simultaneously.

The result...

He "puffed" out a cloud of steaming hot vapor from his mouth, which even carried a faint scent of red bean paste.

Izuna: "...What in the hell is that?"

Tobirama adjusted his non-existent glasses: "Thermal-moisture convection caused by a failure in chakra nature transformation... Theoretically, it has significant research value."

Qingyu: "I almost boiled myself alive!!"

Qingyu: I'm hungry...

Tobirama & Izuna: If you're hungry, go eat!

At three in the morning, Qingyu's chakra was exhausted; he lay paralyzed on the ground, his entire body aching, while the two continued to bicker in his mind.

Finally, he made a compromise attempt, circulating both fire-attribute and water-attribute chakra at the same time.

Qingyu spat out a bit of black smoke and a few droplets of water... simultaneously.

At three in the morning, Qingyu lay on the ground, his chakra depleted, his body sore all over.

The two souls in his mind were still arguing.

"Enough!" Qingyu suddenly shouted.

The two (souls) were stunned.

Qingyu climbed up from the ground, brushed off the dust, and felt like crying.

The teaching styles of these two big shots were diametrically opposed:

Izuna was the typical Uchiha style: high demands, high standards, and constant cursing, yet he would occasionally blurt out a nugget of true insight—all experience bought with blood during the Warring States period.

Tobirama was the standard Senju style: rational, rigorous, and methodical; he analyzed the principles of every step and seemed eager to draw out chakra flow diagrams to explain calculus to him.

And Qingyu, a modern transmigrator and a dead-last student at the Ninja Academy, was caught in the middle...

Like a sports failure being specially trained by two Olympic champion coaches at the same time.

"I don't care what grudges you had when you were alive!" Qingyu sat up, gasping for air.

"But now that you're living in my head, I have only one request: don't get me killed."

He pointed at Izuna: "You, teach me Uchiha Style shuriken and footwork, but don't demand three-tomoe level precision right off the bat."

Then he pointed at Tobirama: "You, teach me chakra control and tactical analysis, but don't expect me to learn the Water Dragon Bullet overnight."

Finally, he looked at both of them: "As for how you divide the work or how you argue... I don't care, but when I need it, you must provide me with consistent guidance, otherwise!"

He pulled up the system interface and pointed at the [Forced Silence] button: "I will make you both shut up."

Silence.

After a long while, Izuna snorted: "...Interesting brat."

Tobirama adjusted his non-existent glasses: "Rational analysis suggests this proposal is indeed the most efficient."

[System Notification: Temporary consensus reached, consciousness coordination slightly improved.]

[Function Unlocked: Skill Tree Preview (Partial)]

[Izuna Uchiha can provide: Fire Style Mastery, Shurikenjutsu (Uchiha Style), Sharingan Application Theory (including Three-Tomoe combat techniques), Genjutsu Basics, Izanagi Principles (unlocked at high compatibility)...]

[Tobirama Senju can provide: Water Style Mastery, Essence of Chakra Control, Sealing Jutsu Basics, Tactical Analysis, Flying Thunder God Technique (pending unlock), Impure World Reincarnation Forbidden Jutsu Principles (high compatibility warning)...]

Qingyu looked at that long list and suddenly felt... perhaps this wasn't such a bad thing?

If he could survive the "tutelage" (and bickering) of these two Warring States titans, that is.

"Then," Tobirama spoke first.

"Since the exam is tomorrow, we should formulate a strategy now. What is the content of the first stage?"

Qingyu recalled the details from the briefing: "Forest of Death, seize the scrolls, reach the Central Tower within five days."

"Terrain? Rules and details? Permitted ninja tools?" Izuna pressed.

Qingyu answered them one by one.

The two (souls) fell into deep thought.

For once, they didn't mock each other.

"In other words, the focus is on survival and intelligence," Tobirama analyzed. "Combat is not mandatory, but it is inevitable."

"Squad-based combat, yet betrayal is allowed," Izuna sneered. "Truly a rule that fits the essence of a ninja."

"So we need," the two said in unison, then exchanged a glance, simultaneously huffed, and turned their heads away:

"A reliable plan."

"An effective strategy."

Qingyu watched this bizarre display of tacit understanding and suddenly smiled.

The advantage is mine!

[System: I say, this Seat's insight is profound!]