"Listen up, Dog-bro. Let me give you some advice.
Sure, you'll never beat Dai in a straight fight, but you've got one advantage over him."
"What advantage?" Sakumo's lips quirked in a knowing half-smile.
He could practically see Rinjin's fox tail starting to show.
Beside him, Rinjin grinned and clapped Sakumo's shoulder before putting on his most serious expression:
"You're still breathing, and Might Dai is six feet under!
Being alive means you've still got room to grow~"
Sakumo shook his head, unconvinced.
"Rinjin, you're forty-one, I'm four years older—I'm already forty-five.
We're old enough to be grandfathers! What the hell kind of 'room to grow' do we have left?!"
Rinjin waved dismissively.
"Ha~
That's the most ridiculous bullshit I've heard all year, bar none.
Forget distant examples—let's talk about someone we both know: Kagami.
Kagami's older than both of us, right?!
But that stubborn bastard refused to waste his grandson's Sharingan talent, so he forced himself to read every single genjutsu theory book in the village library.
Hell, he even swallowed his pride and learned sealing techniques from a young punk like Uzumaki Akira.
Kagami's pushing fifty now~"
Faced with such ironclad logic, Sakumo reluctantly nodded.
"True! Kagami really is the most stubborn and driven guy in our generation!"
"Exactly~" Rinjin struck while the iron was hot:
"Kagami's got a grandson and he's still busting his ass—your son isn't even married yet! You seriously think you can retire?!
Come patrol with me. I'll teach you 'Hidden Cloud Secret Taijutsu: Lightning Release Chakra Mode.' Consider it a family heirloom!"
Sakumo's heart skipped a beat.
A family heirloom—that was no joke!
Among Rinjin's disciples, Teuchi had mastered Lightning Release Chakra Mode, but officially he couldn't pass it on.
But a "family heirloom" from Rinjin was like receiving full transmission rights in swordsmanship—
It meant Sakumo could pass this taijutsu to his descendants without restrictions or complications.
Even if complications arose, they'd be Rinjin's problem.
Sakumo wasn't afraid of trouble, but he was rigid and old-fashioned in his principles.
Honor meant everything to him.
After mulling it over, Sakumo finally nodded with visible reluctance.
For his son's sake, he'd do it!
Honestly, his hesitation hadn't been about fear of death or trouble—it was fear of embarrassment.
Partnering with this bastard was guaranteed social suicide!
He'd tasted social death twice before.
Back then he was still in Konoha, so he could grit his teeth and endure it.
But now he genuinely loved Hidden Rain Village and didn't want to die socially in front of the villagers.
Most importantly, he was working as a fucking gate guard—a job that forced him into the public eye!
Once he socially died!
Knowing that bastard Rinjin, he'd definitely set up barriers around the guard post... and then...
Sell tickets!
And those damn villagers would absolutely cooperate by buying tickets to gawk at him!
Just imagining himself surrounded by a gawking crowd making amazed noises, Sakumo broke out in a cold sweat.
Less than thirty seconds after agreeing to Rinjin's proposal...
He already regretted it~
...
Time flowed like water, and a week vanished in the blink of an eye.
Dawn was just breaking when Rinjin and Sakumo strolled cheerfully through the morning mist toward the village gates.
"Shift change~
Kagami, go home and catch some Z's!"
At the guard station entrance, the energetic Kagami smiled and nodded, calling for his grandson to retreat.
Looking at Shisui with his little adult demeanor, Rinjin smiled and ruffled the kid's spiky hair.
"Go get some sleep~"
"You got it, Grandpa Rinjin!"
"This kid's just too damn likeable!"
The moment those words left his mouth, Kagami approached with his thermos and jabbed Rinjin.
"Watch your language—no swearing in front of the kid!"
"Roger that~"
Watching the old man and young boy disappear into the distance, Rinjin sighed wistfully:
"Shisui really made all of Kagami's dreams come true!
By the way, Dog-bro, I heard you passed down your family's Body Flicker Technique to the kid?!"
Sakumo nodded casually.
"Shisui's got incredible talent. His future achievements with Body Flicker will blow mine out of the water."
"Ninjutsu-type or taijutsu-type?"
At Rinjin's seemingly dumb question, Sakumo replied with mild irritation:
"Both! He switches between them like it's second nature!"
Rinjin fell silent.
He'd seen people who were incredibly skilled with Body Flicker and Substitution Techniques—even without other powerful jutsu, their strength was formidable.
Most importantly, one of the prerequisites for learning Flying Thunder God was being extremely proficient with Body Flicker.
This got Rinjin stroking his chin thoughtfully.
Shisui was like his own kid—maybe he should teach him Flying Thunder God?!
Hmm...
Better wait. Once I finish developing Flying Thunder God 3.0, I'll teach it to the kid.
Decision made, Rinjin slapped his cheeks and plopped down at the guard station entrance, pulling out a scroll.
If Flying Thunder God was about using your own chakra to transfer yourself or others through space,
then Flying Thunder God 2.0, which incorporated Summoning Technique, shattered spatial limitations—
you could freely travel to places like Mount Myōboku or the Kamui dimension.
The Flying Thunder God 3.0 that Rinjin was developing now was designed to synergize with his immortal body.
After training enhanced by Nine-Tails chakra, his physical form seemed to have reached some kind of durability ceiling.
Before, maybe one or two things could still hurt him—
like Uchiha Madara's Complete Body Susanoo, or Kagami's Complete Body Susanoo...
But a few days ago, he'd tested it with Kagami.
Kagami's Complete Body Susanoo spear couldn't even pierce his eyelid!
He remembered how everyone at the training ground was struck speechless, even Kagami himself froze in disbelief.
That's when Rinjin reached his conclusion:
No external force could breach any of the Eight Gates' pressure points.
Unless...
Spatial power...
So Rinjin experimented with using Flying Thunder God to split his own body.
The results were barely acceptable—
his arm nearly tore clean off, but his tendons, toughened to their absolute limit, and his virtually indestructible bones forcibly withstood that spatial power.
The result? Flying Thunder God failed, and his stationary body brutally yanked the flying arm back into place.
But this gave Rinjin hope.
If he could develop a brand new Flying Thunder God technique that simultaneously tore through all eight pressure point barriers from the Gate of Opening to the Gate of Death—
wouldn't that mean he could open all Eight Gates simultaneously?!
With the eighth Gate of Death's enhancement, he could completely eliminate his only weakness—genjutsu.
When that time came, he'd storm the fucking Takamagahara and wreck the Ōtsutsuki!
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