From which country did Namikaze Minato rescue Jiu Sinai?

According to the query of Tencent Video APP, in Naruto, Namikaze Minato and Uzumaki Kushina are both ninjas in Muye Village. Uzumaki Kushina was originally a ninja in the land of water, but because of her special chakra, she was targeted by Yunyin Village in the land of thunder. Three ninjas from Yunyin Village ambushed Jiu Shinnai's home, and Jiu Shinnai was kidnapped when he came home from school. Fortunately, Namikaze Minato discovered and successfully rescued Jiu Sinai in time. The comic book Naruto is adapted from the comic book of the same name by Japanese cartoonist Kishimoto Masashi, and tells the growth story of the protagonist Naruto Uzumaki.