Starting Sharingan: Am I Parasitized by Uchiha?

Uchiha Kagetsu, the former battlefield rose, was stabbed in the back, but she used her kaleidoscope power to parasitize the Sharingan on an ordinary boy. Then the boy used this eye to learn various ninjutsu, get to know various ninjas, and show an ordinary ninja world through his perspective in the timeline before the main story. There is no late-stage battle power collapse, no gods fighting, Gundam everywhere, just the ninja world that relies on ninjutsu and intelligence to fight. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.