After Uzuki Yugao murmured a soft "Mm," she nestled quietly in Shin Uchiha's arms. She did not ask where he would arrange for her to stay, because she believed everything he did was for her own good.
Of course, Shin Uchiha intended to place Uzuki Yugao with Tsunade. Aside from his own side, being with Tsunade was the safest place she could be right now. Besides, Tsunade had three outstanding medical ninja with her, who could help look after Yugao.
Once their emotions had settled, Shin Uchiha looked into Uzuki Yugao's expectant eyes and asked again:
"Yugao, are you sure you really want me to use this secret technique on you? Once I do, you'll never have a chance to change your mind."
Uzuki Yugao nodded firmly at his words. "I want to be the person closest to you, Shin-kun, and stay with you forever. So I won't regret it. Please use it on me."
Having confirmed Uzuki Yugao's resolve, Shin Uchiha nodded and wasted no more words. He gathered his chakra, activated his Eternal Mangekyō Sharingan, and gazed at Yugao in his arms.
This was also Uzuki Yugao's first time seeing Shin-kun's Mangekyō Sharingan from so close. Awestruck by its captivating, magnificent beauty, she murmured, "They're so beautiful, Shin-kun. You've made me even more enchanted with you."
Shin Uchiha did not answer her. Instead, he immediately used his dōjutsu on her.
"Dōjutsu-Kotoamatsukami!"
Then a strange surge of mental energy silently swept into the depths of Uzuki Yugao's consciousness with irresistible force, permanently changing her awareness and thoughts.
In truth, Shin Uchiha's rule when using Kotoamatsukami was simply to put himself first in his target's consciousness, leaving everything else unchanged. This was why none of the people he controlled had been exposed. After being controlled by his Kotoamatsukami, you were