Oricon (Japanese research organization) released its weekly Light Novel ranking for the week of 2024/12/09.
※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: Kaleidoscope II: Double Helix Side Story

A must-read collection of episodes, including a two-person hot spring trip and a summer fireworks festival, in the series’ first side story compilation!

Finally, a summer vacation! Masaki and Naoto head out on a hot spring trip just for the two of them. However, at their inn, Masaki happens to run into Kagami, who is there for a commercial shoot. Masaki is unexpectedly asked to be a stand-in right before filming begins...!?

Fans can look forward to "Stand-In" and 13 other short stories, including a monologue delving into Masaki’s internal struggles and emotions written for a drama CD. This collection captures passionate confessions and vivid encounters with various characters that couldn’t be included in the main series. A must-read compilation of the initial 14 side stories!

4th place: The Detective Is Already Dead 12

"Have I fulfilled your request?"

The "Uncharted Sanctuary" Arc begins!

Together with two detectives, I—Kimihiko Kimizuka, their assistant—successfully prevented the collapse of the world caused by the "Great Calamity." Now, we are faced with the next crisis: the "Hunter of Harmonizers." But the primary suspect is a girl I could never forget...

At the same time, a new client visiting the Silver Detective Agency claims to have met my "mentor," who was supposed to have died eight years ago.
"Come now, assistant. If you’re the real deal, show me the side of you that I don’t know."
"…I... I...!"

Real versus fake. Truth versus lies. Four locked rooms.

This is a story that asks Kimihiko Kimizuka what he desires and who he truly is. And that same question will be posed to everyone equally: to the two detectives, the lone queen, and the machine doll who cannot dream.