Uchiha Jin is a transmigrated soul. Familiar with the plot and without a system, he only wanted to be a background character, even preparing a backup plan to study statecraft so he could leave with his parents before the clan massacre. Unexpectedly, Danzo captured his parents to collect Sharingan eyes, causing Uchiha Jin to instantly awaken his Mangekyou.

Heh. Did they really think this transmigrated soul had no temper? Uchiha Jin thus completely changed his plan, joined the Uchiha, directly confronted the Konoha high command, and began his journey to seize power.