In which episode did Huo Ying's fourth generation die?

In the 468th sentence, the mysterious masked man threatened Watergate with the newborn Naruto. After Watergate was forced to rescue Naruto with the skill of flying Raytheon, masked men snatched the newly-made Nine Sinai. By the time Watergate happened, Kyubi no Youko had been dragged out of the body of the old Snell. On a quiet night, no one noticed anything unusual. The sudden appearance of Kyubi no Youko caught everyone off guard, and the village fell into chaos in an instant. Watergate incident covered with Huo Yingyu's hair, now Huo Ying has to perform his duties, and the masked man found him again.

Watergate suspects that the "masked man" may be Uchihiro Shoko Asahara who fought against the first generation of Huo Ying. He is extremely dangerous and must be stopped. After two rounds of fighting, Watergate analyzed the weakness of his opponent's endurance and worked out a strategy to defeat the enemy. He used the second stage of flying Raytheon, hit the masked man hard with spiral pills, and left flying Raytheon on the masked man. Then Watergate released the masked man from Kyubi no Youko with a contract seal, and the masked man escaped injured.

In the 469th sentence, Kyubi no Youko still attacked Konoha, and Watergate took himself and Kyubi no Youko away from Konoha Village by flying Raytheon, and at the same time rushed to the scene with Jiu Sinai and Naruto. Watergate believes that The Masked Man will definitely bring bloodshed to the forbearing world in the future. In order to stop him, Watergate decided to make Naruto a pillar of Kyubi no Youko. Kyubi no Youko's yin attribute chakra was sealed in the body of a ghost god of death, while his yang attribute chakra was sealed in the body of a newborn Naruto by a gossip. At the same time, he also sealed himself in Naruto's body with the remaining chakra of Jiu Si Nai. After leaving Naruto's last words, both Watergate and Jiu Si Nye died.