Kodansha is launching NECLOGOS, a music project born from “Hundred Note,” a cross-media content with over 1.6 million total YouTube subscribers. The debut track “Aftermath” will begin streaming on Thursday, June 18, 2026, at 0:00, and ahead of that the character visuals for its four members—Yem, Krem, Ele, and Rei—have been unveiled.

A Project That Mourns, Through Music, the Feelings Detectives Cannot Save

NECLOGOS is a four-member music unit—Yem, Krem, Ele, and Rei—who belong to the public relations division of the unified detective organization “Nest” that appears in “Hundred Note.” All of them possess the special ability “Nanasei” (Seven Voices), a power that lets them reproduce a wide range of “voices” regardless of gender, age, or pitch.

This project takes the feelings of those involved—the emotions that slip through the cracks as detectives solve their cases—and mourns and elevates them in the form of music. To scoop up the individual circumstances, motives, and the feelings buried within each crime, to question them anew before the world, and to grieve what has been lost, the PR division turns to sound and verse. The project name “NECLOGOS” means “words of the dead.”

Debut Track “Aftermath” Pairs aruma with Suisoh

The debut track “Aftermath” is a 1st digital single composed by Suisoh with vocals by aruma. Themed on the “Hundred Note” story “Lost Humanity / Night Owl,” it begins streaming on Thursday, June 18, 2026. The MV premieres the same day at 19:00 on the official YouTube channel, and the song can also be heard on various streaming services.

aruma, on vocals, is an artist who has drawn attention mainly in the online music scene for a voice that blends transparency and fragility, and in 2025 also performed the ending theme for a TV anime. Suisoh, who provided the track, is a Tokyo-based singer and track maker handling lyrics, composition, arrangement, and production, with total plays of released songs surpassing 100 million. Suisoh has collaborated with many artists across genres, including VTubers, voice actors, and bands.

What Is the Cross-Media Content “Hundred Note”?

“Hundred Note” is a multi-media composite content presented by Kodansha. Set in TOKYO CITY, a metropolis turned into a city of crime, it follows a story in which 100 great detectives and their assistants pit their wits against one another, developing the original stories of numerous characters across various forms of expression such as YouTube anime, manga, and events.

The launch of the music project NECLOGOS marks a new axis for this cross-media expansion. Depicting, through music, the emotions that spill out of crime-solving stories is an attempt to broaden the work’s world in a more multifaceted way, and how the project develops through future track releases and MV premieres will be worth watching.

Impressions and Outlook

Having characters from an original property release actual songs as a music unit is one of the more powerful approaches in recent IP management. In particular, the combination of aruma, who has won support in the online music scene, and Suisoh, who has a rich track record of collaborations with VTubers and voice actors, is designed to reach both the original fanbase and online-music listeners. The concept of “mourning the feelings detectives could not save” has strong narrative pull, and it seems likely to function both as a standalone song and as a gateway into the work’s world—raising expectations for further expansion of the Hundred Note universe.

Source: PR TIMES