In fact, Senga's body is actually twenty years old, which is not considered old.
However, in Kakashi's eyes, Senga was a contemporary of the Fourth Hokage, and should be close to forty years old. But Senga's face looked like he was not even twenty years old.
They were genuinely curious about what Senga had been doing all these years. After all, Senga didn't know Tsunade's Hundred Healings Jutsu, so how did she manage to maintain her youthful appearance?
Kakashi immediately thought of Orochimaru.
Before Orochimaru left Konoha, Senga was very close to him, and it is very likely that Senga spent the time she was missing with Orochimaru.
Orochimaru knows Eight Gates of Ninjutsu, Jiraiya is also one of the Sannin. Perhaps Senga learned something from him?
It must be said that Kakashi's analytical skills are quite strong; at least he guessed correctly who Senga was with when she disappeared.
However, he was wrong about the secret to Senga's eternal youth.
Because Senga's body has evolved into Otsutsuki, and with the presence of the special Ten-Tails within him, he already possesses an infinite lifespan, so physical aging simply doesn't exist for him.
Kakashi, of course, knew nothing of this. Realizing that Senga might be on Orochimaru's side, his expression darkened, and he asked...
"Senga, where have you been all these years? Did you go to Orochimaru?"
"Pretty much, he's helped me a lot."
"Then you and him..."
Kakashi paused here. Orochimaru was a true Rogue Ninja, and if Senga was related to him, he really didn't know what to do.
"Um?"
Senga narrowed his eyes and said,
"Kakashi, what are you trying to say?"
Naruto, sensing something was amiss at the door, quickly carried Sasuke inside and said...
"Kakashi-sensei! Orochimaru has been dealt with by Senga, and he's currently hanging on his waist!"
"Nani?"
Kakashi immediately looked towards Senga's waist and saw the small white snake that Orochimaru had transformed into.
Orochimaru raised his snake head and glared at Kakashi, looking utterly disdainful.
Sakura, who followed Naruto in, also confirmed this.
However, Kakashi hadn't recovered from the Orochimaru incident when he saw Sasuke on Naruto's back.
This time he completely lost his composure and jumped out of bed. At that speed, no one would guess he was an "injured" person.
Naruto gently placed Sasuke on the bed and Sasuke his body, trying to wake Sasuke up.
No matter how much he shook him, Sasuke showed no signs of waking up. Kakashi couldn't help but ask,
What's wrong with Sasuke?
Naruto glanced at Senga and said,
"He was knocked unconscious by Senior Senga..."
Upon hearing this, everyone present looked at Senga, Senga remained calm. Kakashi wanted to ask for more details, but Sai suddenly entered the ward.
Upon seeing Sai, Naruto's face lit up with surprise.
"Sai? What are you doing here?"
Sai, however, did not wear his usual smile. He glanced at Naruto with a complicated expression, then turned his gaze to Senga, looking as if he wanted to say something but hesitated.
Senga was also looking at him, making him feel extremely uncomfortable.
Although Senga didn't activate her Mangekyo, Sai felt that Senga had seen right through him.
After staring at each other for a moment, Senga suddenly walked up to Sai and said calmly,
"Stick your tongue out."
Senga's voice seemed to possess some kind of magic. Sai was stunned for a moment, and actually stuck out his tongue, exposing the Cursed Seal of Curse Mark of the Tongue Root to everyone.
But this also triggered the curse within, and a strong sense of numbness instantly filled Sai's entire body.
This time, the Curse Mark of the Tongue Root more intense than that initiated by Danzo. Sai collapsed to the ground, convulsing in pain, his breath growing weaker and weaker.
Everyone was shocked by this situation. Naruto anxiously called out to Sakura.
"Sakura! Quick, go save Sai!"
Sakura was still in a daze when Naruto called out to her, and she quickly came to Sasuke's side, crouching down to check on Sai's condition.
During this process, Sakura's complexion grew increasingly worse. She slowly stood up and said in a low voice,
"Sai's body has been completely destroyed by a Chakra; there's nothing I can do about it!"
This statement essentially sealed Sai's fate. Keep in mind that Sakura's mentor is Tsunade, whose medical skills are likely superior to all the doctors in the hospital. If she says she's powerless, then it's truly over.
Ino asked hesitantly,
"Sakura, if it were Lady Tsunade..."
"Even if Lady Tsunade Sai, it wouldn't help Sai; he doesn't have much time left."
Upon hearing this, everyone present fell silent. They hadn't expected such a thing to happen; a vibrant life had been lost just like that.
Only Naruto did not give up hope. He looked at Senga with a hopeful expression. In his eyes, as long as Senga- senpai did not express his opinion, there was still a chance for things to turn around!
He ran to Senga, and to everyone's astonishment, knelt down on the ground and shouted,
"Senior Senga! Please save Sai!"
With a casual wave of Senga hand, an invisible force lifted Naruto from the ground. Naruto tried to kneel again, but was glared at by Senga.
"Alright! Stop kneeling down to people all the time, understand?"
Naruto's actions reminded Senga of the scene in the anime where he knelt before the Raikage, which had made him very unhappy at the time because he felt the Raikage was unworthy.
Naruto had no idea what Senga meant. He was startled and nodded blankly, it was unclear whether he had taken her words to heart.
Senga sighed helplessly, then bent down and placed a hand on Sai's chest, channeling Yang Release Chakra into him.
Everyone looked at Senga with puzzled expressions, but Sakura suddenly remembered the time when Senga saved Naruto. Naruto's condition was also very bad at that time, but Senga just pressed down on him and Naruto immediately became lively again.
Although Sai's condition was several times worse than Naruto's, Sakura had a feeling that Senga could really save Sai!
Sure enough, what happened next confirmed her feeling. When Senga removed her hand from Sai's chest, Sai suddenly opened his eyes, sat up from the ground, and looked like he had come back to life.
Ignoring the stunned gazes of the crowd, Senga looked at Sai, who was still in a daze, and said calmly,
"Alright, tell me, what does Danzo want with you?"