In the tenth episode of To Your Eternity Season 3, Yuki prepares to return home after her confrontation with the Nokker, but Fushi has other plans. Their enemies are hot on his trail, and they may be lurking in the shadows, eavesdropping on their conversation. Thus, he vows not to go back home until he has vanquished them all.
Meanwhile, Rikuya, one of Mizuha's admirers, chats with her about Fushi, expressing his jealousy and urging her to steer clear of the immortal boy, saying he's strange. However, Mizuha ignores his words and continues as she is.
At school, Fushi searches for the girl wielding the Naginata who attacked him earlier. When he finally finds her in a storage room, he attempts to communicate with the Nokker within her. Unfortunately, it's to no avail.
As Fushi tries to persuade her, Rikuya stumbles upon them with Mizuha and becomes enraged. He punches Fushi, shouting that Mizuha likes him and that he shouldn't be chasing after other girls. In response, Mizuha slaps Rikuya and leaves.
When Rikuya returns home, he discovers that his nose is bleeding and that he's losing his teeth. By morning, his mother finds him lying in bed with all his bones broken and no teeth. The commotion at school is immense, and people speculate that someone attacked him. Mizuha cries to Hannah about mistreating Rikuya and hugs her tightly, but there's a cold look in her eyes that conveys menace rather than sympathy.
The girl with the Naginata receives a letter and goes to an alley to meet someone. Surprisingly, the person she meets is Mizuha, who stabs her classmate with a similar blade. Meanwhile, Fushi had been trying to transform into animals so tiny that he could find the Nokker within the girl. He follows her as a mosquito and ends up in the same alley, witnessing everything that transpires.
Fushi's gaze interrogated Mizuha, seeking an explanation for her actions. But her expression was one of confusion, mirroring his own. Believing she was in pain, he offered to do anything to alleviate her suffering. In response, she formed a sinister smile and revealed her desire: for him to love her. This memory of her ancestors sent a shiver down his spine, making him feel uneasy. As she wrapped her arms around him, she claimed that this already helped.
Suddenly, the Naginata girl rose from her seat and congratulated them. As Fushi backed away, the Nokker within Mizuha spoke to him. It had died when Kahaku passed, but 500 years later, it felt Mizuha's sorrow from beyond. It had come back to life, entered her body, and sought to make her stronger. Its goal was to eliminate all sources of stress in her life. That was why it had attacked the Naginata girl and Mizuha's mother. However, it apologized for the Nokker that possessed Mimori.
Now, its true objective was to live in peace with Fushi. The Nokker tried to kiss him, but he pushed it away. Then, it seemed Mizuha had control of her body again, but she didn't understand what was happening. This confusion only added to Fushi's bewilderment. He yelled at her, telling her not to touch him, and then vanished into thin air. He reappeared in the city but was completely lost.
Despite not wanting to live with the Nokkers, Fushi didn't know what to do. He pondered whether he should tell his friends about it, but he didn't want to disrupt their peace. Suddenly, he bumped into Tonari, who had been thinking about him. The girl apologized for her anger and the way she had treated Mizuha. However, this only made Fushi nervous. Tonari tried to find out what was happening, but Fushi refused to tell her and left.
Later, he met Bon, who told him that the Nokkers were wrong. This gave Fushi a sense of relief, and he transformed into a bird and flew away. He followed Mizuha's mother as she picked up the girl in the midst of the rain. He told her it was time for her to stop pretending to be human.
