After Desir and his party defeat Boromir Napolitan to escape from the Shadow World, he finds himself sent back in time to the enrollment ceremony of his school 13 years ago.

Desir takes the test to enroll in Hebrion Academy, along with Romantica and Azest in Group D.

Desir is placed in the beta class despite his test result, and so does Romantica, even though she's a noble. Desir finds Pram, another new student from the beta class, and invites Romantica to join his party.

With Pram and Romantica, Desir aims to win the ranking tournament to get promoted to the alpha class. Desir starts training his team to draw out their full potential, based on what he remembers.

Desir and Pram attempt to get Pram's rapier back from the man he sold it to, and uncover hidden secrets in the process.

The final round of the ranking tournament begins! Desir, Pram, and Romantica must finish in top place to be promoted to the alpha class, but alpha team Blue Moon are determined to stop them.