The first round of the Royal Knights Selection Exam... Asta's team is first up to fight. Asta ends up on a team with Mimosa and a mage named Xerx Lügner. The way to win the battle is to destroy the other team's crystal. However, before the match even starts, Xerx upsets the enemy team by being rude to the Wizard King and they heavily damage Asta's team's crystal. Asta and Mimosa panic. Meanwhile, Xerx doesn't seem like he wants to do this at all and takes a break. Asta and Mimosa must now fight alone... What will they do?