Ren had anticipated that Kushina would prevent Naruto from mastering the Nine-Tails' power.
Ren felt it would be difficult to change Kushina's mind with just Shisui and Naruto. Naruto was still too young, and Naruto words would hardly change Kushina's mind; she would only see him as a deceived child.
Therefore, when issuing the mission, Ren deliberately left a trace of his pupil power in Shisui's right eye.
Leave professional matters to professionals; Ren is quite adept at handling this kind of problem.
The simplest method, undoubtedly, is to use the same approach as when dealing with Minato Namikaze: a direct threat.
This time, Ren doesn't plan to use this method, not because Kushina Uzumaki is a girl.
The main reason is that Naruto has grown up a lot compared to a few years ago, and he has also gained more experience. If he wants to threaten Kushina Uzumaki again, he may need to be more subtle in order to avoid being detected by Naruto.
This creates a problem: Ren doesn't believe Kushina Uzumaki can understand the art of his words.
Kushina Uzumaki isn't Minato Namikaze; if things aren't straightforward, it'll be difficult to achieve the desired effect.
After Ren appeared, Kushina Uzumaki was slightly taken aback at first, but then her expression relaxed considerably.
Unlike Naruto's clumsy performance, Ren's skill was unparalleled; the moment he appeared, he gave Kushina Uzumaki a sense of familiarity.
Young, confident, handsome, and with the identity of Hokage, that reassuring smile.
It's hard not to think of her husband, Minato Namikaze Kushina Uzumaki, because these similar traits make Kushina Uzumaki inexplicably feel a fondness for Ren, who has just appeared.
"Now that I've appeared, it means that Kushina- senpai and Shisui have had some misunderstanding. Would you mind telling me about it, Kushina- senpai?"
Since he didn't intend to threaten her, Ren's smile grew even brighter, and he asked Kushina Uzumaki in a very gentle tone.
Her attention was still focused on the intricate patterns on the sacred robe Ren was wearing, and she imagined what Minato would look like wearing it, wondering if Kushina Uzumaki would look even more dashing.
After hearing Ren's question, Kushina snapped out of her Naruto. When Naruto was involved, Kushina Uzumaki became serious, though her tone and expression were no longer as cold as when she was facing Shisui.
"I know that as the Nine-Tails Jinchuriki, Naruto will one day have to face the Nine-Tails himself, but isn't it a bit too early now? Naruto is just a child."
Ren listened attentively, and nodded knowingly after he finished.
"I am Naruto's teacher. Perhaps this is offensive, but I must say that I may understand Naruto better than Kushina Uzumaki. The fact that I brought Naruto here means that the time is right, and I believe Naruto is ready!"
From the outset, Ren made it clear that his relationship with Naruto was more than just that of superior and subordinate, and pointed out that he knew Naruto better than Kushina Uzumaki, subtly stirring up Kushina Uzumaki's guilt towards Naruto.
"Yes, Mom, I'm ready!"
After hearing this, Naruto quickly provided an assist.
Guided by Ren's words, Kushina Uzumaki, who felt a slight pang of guilt towards Naruto, saw the expectant look in her son's eyes and her heart softened a little.
"Children always report good news and hide bad news. There are some things that Senior Kushina Uzumaki may not know. Judging from my age, you should know that I have only been Hokage for a short time, while Naruto has had a very difficult time for a long period of time in the past."
Ren's words made Kushina Uzumaki look at Naruto with a face full of doubt. The mother and son had talked a lot before, but Naruto had only talked about the good things.
"Naruto, how have you been all these years? Don't hide it from your mother, tell me, okay?"
Kushina Uzumaki Naruto a kind expression, suddenly felt a chill and then told her his true story in detail.
"You bastard!"
Kushina Uzumaki roar echoed from within the sealed space; her flying red hair and bulging veins filled Naruto with fear.
My mom looks terrifying when she's angry!
Naruto's fearful expression instantly extinguished Kushina's anger. She then could no longer hold back her tears and hugged Naruto, tears streaming down her face.
"I'm sorry, Naruto, it's all my fault for not being able to be by your side!"
Naruto was initially somewhat frightened, was at a loss for what to do, but then he felt this rare warmth.
After a while, Kushina Uzumaki finally released Naruto.
"Mom, it's okay, it's all over now, I'm doing fine."
Seeing Naruto's genuine smile and his sensible demeanor, Kushina Uzumaki's maternal love overflowed.
Turning around, Kushina Uzumaki bowed deeply to Ren.
"Thank you, Fifth Generation!"
This is pure gratitude. From Naruto's account of his experiences, Kushina Uzumaki knows about Ren's help to Naruto and is filled with gratitude for Ren, who appears so frequently.
Ren still smiled brightly, accepting Kushina Uzumaki's thanks without a second thought.
"It's what I should do. After all, I'm Naruto's teacher!"