Naruto: Forcing Me to Join the Akatsuki? Do You Have the Strength?

Xuan Yu thought he had it all! A prodigy of his clan awakened the Mangekyo at 13, but at 18, his eyes were still clear, with no sign of the red-eye disease. Some ninjas are born Roman nobles, others are born pack mules. Xuan Yu had only two paths: either report the traitor Itachi to the clan leader, or wait for the night of the clan's massacre to be killed by Itachi's blade. Xuan Yu chose a third path: defect from Konoha and head to the vacant territory of the Cat Clan. This was a small step for Xuan Yu, but a giant leap of effort and sweat. Xuan Yu could (not) frantically add points through effort-recharging could increase his own attributes and even upgrade his jutsu. Thus, Xuan Yu fully understood! All fear stems from insufficient effort! Sweat enough, and even Kaguya will be crushed! Since effort has no upper limit, he, Uchiha Xuan Yu, would be the numerical monster of the ninja world! What? Upgrading a jutsu to LV10 causes a qualitative change, producing special effects? No! What did the jutsu do wrong to bear this unbearable power? Years later, recalling that battle, Kaguya Ōtsutsuki said: "In principle, I could defeat Xuan Yu, but now the principle is in Xuan Yu's hands."