Accompanying You from the Warring States Period to the Fourth War [Thousand Hands Tobirama]

[Single male protagonist, no cp, Qianshou Feijian's personal orientation, private orientation, try not to be inhumane, simply dote alone] Nameless is the oldest creature in the ninja world - a dragon. It likes to sleep. When it wakes up, the world outside will change. The world goes from no one to people, from peace to war. It never engages and never blocks. Because it only lives in the sea near the land and has never set foot in the human world, it does not understand human emotions. Oh, by the way, it doesn't have a name either. Until a white-haired boy was sitting on the beach crying and accidentally fell into the sea...