Latest: Japan Weekly Light Novel Sales Ranking As of August 4 2025 Announced by Oricon

Oricon (Japanese research organization) released its weekly Light Novel ranking for the week of August 4 2025.
※The English titles of works may not always be accurate as some have not been released overseas. Thank you for your understanding.

Related rankings are compiled here
Oricon Comic Ranking Summary

5th place: Kirby: Waddle Dee's Great Babysitting Battle!!

A brand-new side story starring the Waddle Dees is finally here!!

While King Dedede is away on a trip, he leaves his castle in the hands of the Waddle Dee Squad.
But suddenly, the Meta-Knights launch an attack, demanding, “Surrender the castle!”

There’s no way they can win in a head-on fight.
Still, until King Dedede returns, they’re determined to protect the castle no matter what!

Pooling their strength, the Waddle Dees use all their wits and courage to take on the Meta-Knights with every trick they’ve got!
Meanwhile, Kirby, King Dedede, and Meta Knight have fallen into a trap set by Shadow Kirby…!?

The spotlight shines on the Waddle Dees at last in this exciting new side story series!!

4th place: Demon Slayer: Mugen Castle Arc – Chapter 1: Akaza Returns (Novelization)

At the headquarters of the Demon Slayer Corps—the Ubuyashiki Estate—Muzan Kibutsuji suddenly appears. The Hashira and Tanjiro rush to the scene to protect their leader, but Muzan casts them into a mysterious dimension.

Where Tanjiro and the others fall is the demons’ stronghold: the Infinity Castle.
Thus begins the final battle between the Demon Slayer Corps and the demons.