If he wanted to, he could use that mark to do something right now.
But he quickly suppressed the thought.
Kushina was not someone who would yield to force.
With her temperament, if he forced her, he would probably never win her heart.
Now that Minato was gone, only Kushina and Naruto remained, a widow and her fatherless child.
He could take his time with her from now on.
At that thought, he withdrew his gaze and did nothing.
Kushina did not notice anything unusual about him. She suddenly spoke:
"Gentō, thank you."
Gentō looked at her.
Kushina said earnestly:
"Thank you for sealing the Nine-Tails back inside me. Speaking of which, your seal really is secure."
"The Nine-Tails used to go berserk several times every month. It put me through absolute hell."
"But ever since you sealed it, it hasn't acted up once."
Gentō smiled. His yin release chakra specifically counteracted the mental impact of the Nine-Tails' violent chakra.
It was only natural that the Nine-Tails could no longer leak its violent chakra through the seal.
So he nodded.
"It was nothing."
But Kushina suddenly tilted her head, a puzzled look crossing her face.
"It's just the pattern of this seal... why does it look a little strange to me?"
"I went through all the Uzumaki sealing arts Granny Mito left me, but I never saw a design like this."
Gentō rubbed his nose and replied casually:
"Well... this is a ninjutsu I created myself."
"It was my first attempt, and I didn't have much experience, so it's normal for the pattern to look a little odd. All that matters is that it works."
Kushina was surprised to hear that. She had not expected Gentō to be a genius capable of inventing ninjutsu, too.
Just then, Mikoto returned with