FanHarem
I’m loving this story and was wondering for Teams could you have Tsunade teach Kushina, Mikoto and Tsume, Orochimaru teach Kai, Nawaki and Hizashi, Jiraiya teach Minato, Hiashi and Shibi and Sakumo teach Inoichi, Shikaku and Choza and when Kai becomes a Jonin have him teach 2 teams over the years in Anko, Kurenai and Shizune and Ami, Fuki and Kasumi