Spy Classroom Volume 16 Reveals Lily Cover, Releases November 20 with Secret Weapon Conflict

Spy Classroom (スパイ教室), the light novel series written by Takemachi, has officially revealed the cover of Volume 16, titled Shitsurakuen no Lily (《失楽園》のリリィ). The new book is scheduled for release in Japan on November 20, 2026, through KADOKAWA.

The series' official X account shared the artwork featuring Lily, illustrated by Tomari. Beyond returning the spotlight to this central character, Volume 16 continues Lamplight's struggle over a secret weapon whose location has become a potential trigger for a major international war.

Quick Summary

• Series: Spy Classroom
• Japanese title: スパイ教室
• Volume 16 subtitle: Shitsurakuen no Lily
• Full Japanese title: スパイ教室16 《失楽園》のリリィ
• Format: light novel
• Genres: action, espionage, mystery
• Author: Takemachi / 竹町
• Illustrator: Tomari / トマリ
• Publisher: KADOKAWA
• Imprint: Fantasia Bunko
• Volume: 16
• Release date: November 20, 2026
• Release day: Friday
• Price: ¥946 including tax
• Pre-tax price: ¥860
• Page count: 326
• Book format: bunko paperback
• ISBN: 9784040766553
• Cover character: Lily / リリィ
• Main spy team: Lamplight / 灯
• Contested secret weapon: Naraku Ningyou / 奈落人形
• Involved nation: Galgad Empire
• Major threat: outbreak of a large-scale war
• Previous volume: Volume 15, Amanojaku no Sybilla
• Volume 15 release date: July 17, 2026
• Preorder status: available through Japanese bookstores

Spy Classroom Volume 16: Shitsurakuen no Lily Cover

Lily Returns to the Spotlight in Volume 16

The new cover features Lily, recognizable by her light-colored hair and pink eyes, wearing a dark-toned outfit against a decorative backdrop of flowers and arched windows.

The illustration places Lily at the center of a main-series volume once again. She previously headlined Volume 1: Hanazono no Lily (《花園》のリリィ), which introduced readers to Lamplight's earliest adventures.

The new subtitle, Shitsurakuen no Lily, carries the meaning of a lost paradise. Its wording suggests an important shift for Lily, although the exact significance of the title remains part of the unpublished story.

Naraku Ningyou Dispute Threatens International Peace

According to KADOKAWA's official synopsis, Lamplight (灯) has finally discovered the location of the secret weapon known as Naraku Ningyou (奈落人形).

However, events take a dangerous turn when the Galgad Empire suddenly demands that the territory containing the weapon be ceded.

The demand sparks international panic over the possibility of another large-scale war. Amid the escalating crisis, one member of Lamplight begins acting suspiciously.

The synopsis also indicates that the struggle surrounding Naraku Ningyou is approaching a resolution. For now, the identity of the suspicious team member and the outcome of the confrontation remain undisclosed.

Continuing the Conflict from Volume 15

The previous installment, Spy Classroom 15: Amanojaku no Sybilla, was released on July 17, 2026, focusing on Lamplight's search for the storage location of Naraku Ningyou.

In that story, Lamplight faced financial difficulties after leaving the Din Republic. The team eventually deciphered classified documents obtained during an earlier mission.

Their investigation drew the attention of world-class spies pursuing the same weapon. Sybilla became an important figure as Lamplight confronted attacks from competing intelligence operatives.

Volume 16 raises the stakes beyond the search itself. The team must now contend with an empire's territorial demands and the possibility that the secret weapon could destabilize international relations.

Why This Matters

1) Lily returns as a central figure

Having Lily headline another main-series volume creates a connection with the beginning of Spy Classroom, when readers first encountered Lamplight and its unconventional missions.

2) The stakes have become geopolitical

The Naraku Ningyou conflict now involves territorial control and the threat of war, requiring more than the team's usual infiltration skills.

3) Lamplight may face a threat from within

The hint about a suspicious teammate raises questions about trust inside an organization whose success depends on cooperation, deception, and carefully guarded secrets.

Spy Classroom Volume 16 Information

Additional important information currently known:

• the official Japanese title is スパイ教室16 《失楽園》のリリィ
• the international series title is Spy Classroom
• Takemachi writes the novels
• Tomari provides the illustrations
• KADOKAWA publishes the series under Fantasia Bunko
• Volume 16 is scheduled for November 20, 2026
• the paperback costs ¥946 including tax
• it contains 326 pages
• the ISBN is 9784040766553
• Lily appears on the newly revealed cover
• Lily also headlined the first light novel volume
• the central spy team is called Lamplight / 灯
• Lamplight has discovered the location of Naraku Ningyou
• the Galgad Empire demands the territory containing the weapon
• its demand creates the risk of a major war
• one Lamplight member begins behaving suspiciously
• the secret weapon conflict is approaching a resolution
• Volume 15 was released July 17, 2026
• Volume 15 is titled 《天邪鬼》のジビア
• Volume 16 is listed in KADOKAWA's official catalog
• the cover announcement is available through Official Spy Classroom X
• book details are available through KADOKAWA Official Volume 16
• previous volume details are available through KADOKAWA Official Volume 15
• the release schedule is available through the Fantasia Bunko November 2026 Catalog

Closing

Spy Classroom Volume 16: Shitsurakuen no Lily arrives on November 20, 2026, with new cover artwork returning Lily to the spotlight. The story continues the struggle over Naraku Ningyou, a secret weapon now threatening the balance between nations.

KADOKAWA has revealed the book's synopsis and publication details, while readers will need to await the novel's release to learn Lily's role and how Lamplight's confrontation with the Galgad Empire will unfold.

Game Ad

DPS - Convenience Pack