: Sister Lily reads them the legend of the first Wizard King, who defeated a giant demon to save humanity.
: Inspired by Asta's courage, Yuno stops being a "crybaby" and vows to become the Wizard King to change their world for the better. They make a mutual promise to compete for the title as rivals.
: Returning to the battle from Episode 1, Asta uses his new anti-magic sword to easily defeat the chain mage Revchi. The episode ends with the two friends reaffirming their oath as they prepare for their journey to the Royal Capital.
Black Clover (TV) Episode 2, titled "The Boys' Promise," can be watched legally for free with ads on . Episode 2 Plot Summary
This review of Episode 2 highlights the pivotal flashback and the deeper motivations behind Asta and Yuno's rivalry: Black Clover Episode 2 Review || Flashbacks And Motives YouTube• Oct 10, 2017