Naruto: His Understanding Is so Great That He Turns into a Dragon in the Dragon Cave

Naruto + multiple female protagonists + system, the Third Ninja War, the otherworldly holy land, Ryuji Cave, Byakuya came to this world in the body of a white phosphorus snake, and from then on, the painting style of Ryuji Cave was completely changed. Byakuya: Tsunade, Mikoto, Kushina, Hayakura, I am the White Dragon Sage. After the contract is concluded, you will be my psychic beast! What? You said no, sorry, reverse channeling is also a channeling!