Latest ORICON Japan Weekly Light Novel Ranking May 25 2026

Oricon (Japanese research organization) released its weekly Light Novel ranking for the week of May 25 2026.
※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

3rd place: A Certain Magical Index: Genesis Testament Vol. 15

Shiage Hamazura escapes from custody and flees through Academy City with the AI Aneri, while being pursued by Necessarius of the Anglican Church. Meanwhile, Touma Kamijou joins forces with Leivinia and Lessar to chase a mysterious mastermind. The identity of the traitor moving behind the scenes becomes the central mystery.

2nd place: Cosmic Princess Kaguya!

An overworked, high-spec high school girl × a high-energy Princess Kaguya × a virtual idol!?

A little way into the future.
Iroha Sakayori, an overworked, ultra-capable high school girl living alone to focus on getting into the University of Tokyo, is on her way home one day when she finds a mysterious baby—emerging from a rainbow-glowing “gaming utility pole”!

But that baby rapidly grows up right before her eyes, turning into a spoiled girl who absolutely adores Iroha!
Claiming she came from the moon, the girl is named “Kaguya” by Iroha.
However, once Kaguya learns how The Tale of the Bamboo Cutter ends, she makes a bold declaration—

“I’m going to make it a happy ending. No matter what!”

And then, for some reason, she sets her sights on becoming a top idol in Japan’s largest virtual world, “Tsukuyomi”…!?

1st place: Is It Wrong to Try to Pick Up Girls in a Dungeon? Familia Chronicle: Episode Hays

In Disboard, a world where everything is decided by games, Sora and his party of heroes have reached the top floor of the Demon King’s tower, armed only with the “hope” rising from the country of the Demonia. They are finally closing in on the Demon King—but in the middle of the decisive battle, Sora is swallowed by a black pillar of light and collapses.

As everyone struggles to believe what has happened, Sora alone smiles faintly as his consciousness fades: “Now the pieces for victory are finally in place.”

Meanwhile, outside the tower, a crimson moon begins to fall. A third party’s shadow creeps closer in the thirteenth volume of the hit isekai fantasy series.

Related rankings are compiled here
Oricon Comic Ranking Summary

Ranking / Estimated number of copies sold / Estimated cumulative sales volume / Title / Author

8,174 8,174 Is It Wrong to Try to Pick Up Girls in a Dungeon? Familia Chronicle: Episode Hays Fujino Omori (Author), Fumikaru Nishijima (Author) / Nilitsu (Illustration)
6,099 163,475 Cosmic Princess Kaguya! Vol. 1 Studio Chromato / Studio Colorido (Story), Naruto Kiriyama (Author) / Asao Urata (Illustration)
4,143 8,440 A Certain Magical Index: Genesis Testament Vol. 15 Kazuma Kamachi (Author) / Kiyotaka Haimura (Illustration)
3,888 61,696 Detective Conan: Highway no Datenshi Shima Mizuki (Author) / Gosho Aoyama (Story) / Takahiro Okura (Script)
2,234 32,066 No Game No Life Vol. 13 Yuu Kamiya (Author & Illustration)
1,820 1,820 I Was Made a Poor Noble Due to a Reincarnation Processing Error, but I Will Dominate with Alchemy! Sorara Soratsuki (Author) / riritto (Illustration)
1,753 13,282 Alya the Heroine Sometimes Hides Her Feelings in Russian Sunsunsun (Author) / Momoco (Illustration)
1,752 3,410 Bonjin Tensei no Doryoku Musou Vol. 6 Cyclamen (Author) / Yunagi (Illustration)
1,749 3,174 The Strongest Magician Who Returned from Another World Still Dominates in the Real World Ibarakino (Author) / Yozuki (Illustration)
1,694 1,694 On the First Day of Marriage, My Husband Confessed That He Loves My Sister-in-Law Yumi Kazami (Author) / Rabi Tsuyuri (Illustration)

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