Takahiro Mizuno was a prodigy jouster until an injury ended his competitive career, leaving him to work as a begleiter, the attendant who tends a rider's horse and gear and reads the field for them. When Mio Kisaki, a second-year who has admired him since his riding days, is entered in the academy's annual tournament without ever having sat a horse, Takahiro takes her on and coaches her through the fear and inexperience standing between her and the joust. This manga follows Mio's route from the Walkure Romanze visual novel.