Arvis, a poor, underachieving student at an E-rank magic academy, lives on the scholarship provided to magic academy students.

In an academy where nobles receive preferential treatment, Arvis, a commoner, is subjected to bullying and discrimination.

Despite this, Arvis lived happily, supporting his blind and sickly younger sister and even celebrating a "Bean Sprout Feast" seven days a week...

However, one day, he is suddenly expelled from the academy for an unjust reason.

If his scholarship is cut off, he won't be able to earn enough money to support his sister.

Pleading desperately, he manages to secure a promise: if he can defeat Gael, the academy's top student, he can remain. However, Gael is said to be a prodigy talented enough for even a B-rank magic academy, and was also the main instigator of bullying against commoners like Arvis.

For an underachieving student like him, Gael is an impossible opponent to defeat.

Yet, Arvis continued his efforts without giving up, and on the verge of collapsing from overwork, he suddenly recalls memories of his past life.

He remembers that in his past life, he was the strongest archmage who, two hundred years ago, defeated the Demon King in the Great War between Humans and Demons.

And how to wield time magic, a skill now lost to the world.

On the promised day, Arvis heads to the arena.

The curtain rises on the saga of an underdog's unparalleled triumph, now armed with the strongest power.

【The comic adaptation is currently serialized on Gangan ONLINE! The 6th and final volume of the comic adaptation was released on June 12th! (https://www.ganganonline.com/contents/tokitsukai/)】