"I'm talking nonsense?"
'Seiya' raised an eyebrow, grinned, and burst into maniacal laughter.
A moment later, he calmed down, stared intently at Seiya, and coldly questioned: "This is the Waterfall of Truth! Do you know what 'truth' means?"
"I am you! The 'you' that has never been put into words!"
"No matter how you deny it, I am you! The truest you!"
Could the darkness in his heart really be such a sinister and contemptible desire?
Seiya couldn't believe it, nor was he willing to believe it.
He admitted to harboring desire for beautiful women, but it hadn't reached such a despicable level.
Compared to coercion and threats, he preferred mutual affection and a two-way journey.
"It's pointless to talk more; you are not the darkness in my heart."
Seiya flatly denied it and walked straight toward the water curtain, unwilling to waste any more time with him.
'Seiya' did not stop him.
Instead, he let him pass by and smiled, saying, "I'll repeat it again, I am you, the truest you."
"The Shinobi world is vast, with billions of living beings. Other than me and Mother, no one else knows what happened during the time you were studying the teaching materials. Do you want me to tell it to you?"
Seiya's footsteps halted for a moment, then he took a deep breath and passed through the waterfall curtain without looking back.
'Seiya' instantly dissipated with a crash, missing the chance to reveal that unknown secret.
In the dark water-curtain cave, a few candle flames flickered with a faint glow. The rushing sound of water echoed in the cave, making it feel particularly tranquil and secluded.
Seiya's mind was in turmoil.
He silently chanted 'I do not have despicable thoughts' for a while before finally managing to regain a semblance of calm.
'Seiya' had been so resolute and certain in his words that he almost believed he had genuinely thought those things!
It was terrifying!
Seiya now somewhat understood the difficulty of becoming a perfect Jinchuriki.
If all Tailed Beasts were like this Waterfall of Truth, fabricating darkness and prying into people's hearts, it would indeed be infuriating and hard to resist.
At that moment, Yugito Nii walked out of the secret room.
She immediately saw him by the water curtain, her face lighting up with a delighted surprise.
"Seiya, you really came! Matatabi just told me you were here, and I was a bit skeptical!"
As she spoke, she rushed over to Seiya.
Having not seen him for over a year, the young man was already several centimeters taller than her, requiring her to look up slightly.
"Teacher, long time no see!"
Seiya smiled and embraced Yugito Nii.
A strong masculine scent permeated Yugito Nii's surroundings, causing the usually aloof woman to blush unusually.
The Seiya of today, she felt, had not only grown physically, but his inner spirit and energy had undergone a significant transformation.
He used to be a callow youth, but now he was quite like a mature man.
His fervent gaze felt so scorching, making her heart flutter slightly.
And this full embrace was so firm, almost merging them into one.
These were all things that had never happened before.
"Seiya, you've grown up!"
Yugito Nii's eyes held warmth as she gently stroked the young man's determined and handsome profile.
"No matter how big I get, I'll still be your student, Teacher," Seiya laughed.
"That's right, no matter how big you get, you'll still be my student!"
Yugito Nii smiled sweetly, then took Seiya's hand and led him toward the secret room.
"Teacher is going to teach you properly today!"
...
A few hours later, in the secret room, the clouds dispersed, and the rain stopped.
Scattered all over the floor were various kinds of underwear and torn stockings of different colors.
Seiya had never expected that what Yugito sensei wanted to teach would be this!
What a pity, he had already mastered all of this at home before today.
And that wasn't the main point. The main point was that Yugito sensei, as the instructor, was very poor at the subject herself.
It was all theory, relying entirely on him, the student, for guidance.
However, no matter how unpolished Yugito sensei was, Seiya was willing to learn it all over again seriously.
After all, spending a delightful night with the aloof and captivating Yugito sensei-how wonderful!
The only regret was that he had learned all this beforehand, losing the sense of novelty.
This must be the trade-off of gains and losses!
...
After another intense, sweat-drenched session, Seiya was breathing slightly heavily, his blood surging, and power flowing through his body.
He then embraced Yugito Nii and slowly lay down, quietly enjoying the bliss of their synchronized heartbeats.
Beneath them, a bright red plum blossom had bloomed at some point, particularly striking against the pure white carpet.
After a long silence, Seiya gently stroked Yugito Nii's fair and smooth shoulder, curiously asking, "Teacher, why did you suddenly..."
"Suddenly do this with you?"
"Yes."
"You are getting married soon and must learn these things; you can't be completely clueless on your wedding night. Furthermore, I was the one who enlightened Uchiha Mikoto not to mind the age gap. I have a responsibility to lead by example."
Yugito Nii paused, then added, "Also, Teacher had a little selfishness, wanting to be your first woman, Seiya."
"Well, Teacher, you beat Mikoto-neesan to it." Seiya was full of emotion, leaning down to kiss her.
A moment later, he felt the urge again.
However, Yugito Nii was too languid to move. She gently shook her head, pleading, "No, not today."
The high-intensity activity over several hours had left her legs sore, and her calves were still trembling slightly.
"Too much is also not good for your body, Seiya; you need to be moderate. Be good~"
Yugito Nii gently caressed Seiya's chest, soothing him with soft words.
The young man was too vigorous for her to handle.
Seeing that she truly couldn't take any more, Seiya nodded slightly and smiled, "Should we continue tomorrow?"
"Mm." Yugito Nii consented with a nod.
"Can I touch you now? Just a simple touch," Seiya asked.
"Of course," Yugito Nii smiled sweetly.
"Although Teacher is not married to you, we are already de facto husband and wife. It is appropriate for a husband to touch his wife. You don't need to ask for Teacher's permission."
As she spoke, Yugito Nii pulled Seiya's hand onto her porcelain-white, firm thigh, without any shyness.
She was inherently a strong-willed, determined person.
Before breaking the ice, she might have been a bit shy.
But now, she wasn't at all.
Discussing marital affairs was as natural as eating and drinking; there was no need for pretense.
The alluring fragrance was near Seiya's nose, smooth skin was under his palm, and his heart felt immense pleasure, along with a dreamy lightness.
The last few months back in the village had been too comfortable.
The continuous arrival of happiness left him breathless, feeling as if he were floating on a cloud.
Everything he had experienced was unimaginable before he returned to the village.
Is this the joy of being an adult?
It's great!
Seiya was filled with emotion, suddenly feeling that his younger self, who wished to never grow up, was so naive and shallow!
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