In this world, there are ranks that signify strength.

D, C, B, A, and the highest tier—S.

Magic, swordsmanship, martial arts, archery, assassination. Only those who have mastered every technique reach that summit.

A place where many youths gather, aiming for that peak.

Royal Arcana Academy.

Today, as always, students swing their swords, polish their magic, and continue to train themselves to become stronger than anyone else.

However, in this academy, there is one S-rank who defies all common sense.

"He's an S-rank, but he doesn't participate in duels."

"He's an S-rank, but he's always looking at the request board."

"He's an S-rank, but he's looking for a cat."

...Everyone says the same thing.

"Is that guy really an S-rank?"

The young man at the center of those rumors was walking through the academy corridors today, not the battlefield.

"Ah, Senpai! Could you help water the flower beds?"

"Of course."

"I can't reach the library shelves..."

"I'm coming."

"I want you to find a stray cat!"

"Leave it to me."

Seeing this, the students are exasperated and the teachers give wry smiles.

But no one knows yet.

That this "handyman" is actually the strongest S-rank in the academy.

And—.

When an incident eventually occurs that shakes the academy and the world, he will be the first one to stand up.

This is the story of a young man and his companions—the strongest, yet the one who helps people more than anyone else.