Naruto: You Call This A Medical Ninja?

Yes, Kaguya Otsutsuki wanted to survive and found her "lover" in this world. For this reason, she chose to stay. She even created White Zetsu to distribute chakra and lead the world on a new path.

But Uncle Teuchi… his reason for staying?

He fell in love with this world?!

This answer felt somewhat vague.

"Are you confused?" Teuchi asked, noticing Reiki's puzzled expression.

"If I had to give a clear answer, it's that I love everything in this world—flowers, birds, insects, fish, people, even the air."

"You've never been to Takamagahara, but you've encountered Otsutsuki Ishiki's world, haven't you? Our world is much the same... desolate and lonely."

As Teuchi spoke, a wave of loneliness washed over his face.

The Otsutsuki clan was a sickened group—not just individuals but the entire clan. Their synonym was power, but achieving power meant sacrificing much, including their humanity.

Most Otsutsuki had become puppets of power, chasing an impossible peak—Godhood. Without experiencing the warmth of a world like the ninja world, they were blind to the joys, sorrows, beauty, and ugliness of humanity. Instead, they became consumed by their own ambition, hollowed out by the power they sought.

This was why Teuchi chose to remain in this world.

"Is that so?" Reiki murmured, understanding at last.

Kaguya Otsutsuki could be saved. She could even become a force for the ninja world.

As for Uncle Teuchi…

"Uncle Teuchi, if…"

"I won't interfere."

"I won't take sides either. If the ninja world disappears, I'll simply return to Takamagahara."

Teuchi interrupted before Reiki could finish his sentence, giving his answer calmly.

"Alright. Thank you, Uncle."

Reiki stood, nodded, and left some money on the table before walking out of Ichiraku Ramen.

He wasn't Naruto—there was no "Talk no Jutsu" here.

Reiki knew this was enough. Teuchi was already doing the ninja world a favor by not siding with the Otsutsuki clan. Asking him to abandon his origins and fight for the ninja world would be pushing too far.

Unless, like Kaguya, Teuchi had already chosen a different path...

As Reiki disappeared into the night, Teuchi stepped outside the shop, setting up a small bench to sit on.

"Dad..."

A sweet voice called out, and a little girl ran over.

"Calamus, why are you up so late?"

"You won't grow taller if you don't sleep on time," Teuchi teased, feigning anger as he looked at his daughter lovingly.

"But I can't sleep... my stomach hurts."

Little Ayame frowned, rubbing her belly.

After leaving Ichiraku Ramen, Reiki returned home. The information he'd gathered from Teuchi solidified his decision—Kaguya Otsutsuki could be saved.

"Reiki, are we leaving tomorrow?"

Black Zetsu emerged from the ground, his voice calm.

"Yeah."

"Let's rest first," Reiki replied, closing his eyes and beginning to refine his chakra.

Black Zetsu silently stood by, watching.

The next evening, the group of four arrived at a small lake.

"Is this the teleportation array to the moon?" Nozuki asked excitedly.

"Yes, but it's not for sightseeing this time," Reiki said with a smile.

"Reiki, are we really doing this?" Shisui asked, his voice tinged with unease.

After witnessing the power of Otsutsuki Ishiki, Shisui couldn't help but feel wary of the Otsutsuki clan.

"This is the agreement I made with Black Zetsu," Reiki explained. "If we can persuade Kaguya Otsutsuki to join our side, the ninja world will have a better chance against the Otsutsuki clan."

"Understood," Shisui nodded. He chose not to argue further.

Black Zetsu, standing quietly nearby, was pleased. The group's resolve reassured him.

Walking to the edge of the lake, Black Zetsu raised his hand and formed a seal. As chakra surged, a glowing light appeared, illuminating the area.

"Step into the lake," Black Zetsu instructed.

The group followed, stepping into the water as an ancient pull enveloped them. In an instant, their surroundings shifted fantastically.

After a moment of dizziness, they found themselves inside the moon.

"So this is… the moon?" Nozuki gazed around curiously.

"Nozuki, stay close and don't wander off. This place..." Reiki started, but his senses suddenly sharpened.

"That guy is here."

Reiki's voice grew tense. A powerful aura was approaching, and a name appeared on his system panel, making him frown.

Soon, a figure emerged, his presence radiating authority.

"Outsiders, this is not your place. Leave now."

The young man's tone was calm but firm. His indifference made it clear he had no interest in entertaining their presence.

"I am the son of Kaguya Otsutsuki, the one sealed here. She is my mother, and I've come to free her," Black Zetsu declared, stepping forward.

The aura of the man before him felt oddly familiar, though Black Zetsu had never encountered him before.

"Mother?"

The young man's voice was skeptical. "The one sealed here is from ages past. There's no way she could have a child like you."

As he spoke, other powerful presences began to gather behind him. If the group persisted, he was ready to use force.

"My mother is Kaguya Otsutsuki! As a member of the Otsutsuki clan, you should know—"

Thud!

Before Black Zetsu could finish, the young man moved with incredible speed, gripping Black Zetsu by the neck.

"You claim to be her son? Why have I never seen you before?"

A sharp glare burned in his eyes as he tightened his grip.

"My name… is Otsutsuki Toneri," the young man declared coldly.