Itachi Uchiha not pursuing his father's Mangekyou Sharingan shall always remain a glaring plothole in the Naruto series that ...

Two Blue Vortex were teased to have grown, but with the awakening of her Mangekyo Sharingan, she is now truly dominant.

This forces Sarada to step up, revealing her Mangekyo Sharingan and using it for ... exemplified by the Uchiha brothers. Itachi awakened his Mangekyo after witnessing Shisui sacrifice himself ...

Sarada Uchiha reinvented ... unlock the Mangekyo Sharingan when they endure severe suffering and loss which usually occurs through witnessing the death of a close family member. Itachi's Sharingan ...