The rising metal band, Valediction, is on tour throughout Equestria! All was going smoothly until an unexpected incident at their performance in Manehattan injures a wyvern fan. Wracked with guilt and determined to make amends, the frontpony for the band, Killjoy, sets out to help her new friend Ash, along with the help of her bandmates, Blast and Rosella. 

Having never befriended a non-pony before, Killjoy quickly discovers the stark differences between their cultures, and encounters many injustices the dragon often faces. 

The odd pair encounter and overcome many obstacles throughout their blooming friendship, working together to give more non-pony artists a platform in hopes of building a stronger community, like how Princess Twilight intended.