Virtual artists "Memento Vanitas" and "Shuna" from "Mugensho Record" simultaneously release their 1st original songs

RIOT MUSIC Co., Ltd. (Headquarters: Minato-ku, Tokyo, Representative Director: Jun Funahashi, hereinafter "RIOT MUSIC") is pleased to announce that virtual artists "Memento Vanitas" and "Shuna," belonging to the VSinger label "Mugensho Record" operated by the company, have released their respective 1st original songs on various distribution services starting July 5, 2026 (Sun).

Memento Vanitas 1st Original Song "Hikagebokko"

Virtual artist "Memento Vanitas" has released her 1st original song, "Hikagebokko." This song is a piece that sings with a gentle message, like a comforting presence on your back, of her innocent laughter and the kindness hidden within.

Hikagebokko

Artist: Memento Vanitas

Release Date: July 5, 2026 (Sun)

Lyrics: Aiko Takase

Composition: Ririsa, Ayato Fujiwara

Arrangement: Ririsa, Ayato Fujiwara

── "I learned that what is 'running away' for one person is 'living' for another."

"Do your best, look forward, to the sunny places" – I'm tired of hearing those words!

The world insistently recommends "sunny places."

It's even worse because it's well-intentioned. Those who squint in the brightness are always assumed to be a little cowardly.

But the shade has its own breeze. For some, it's there that they can finally remember the sound of their own breathing.

"Hikagebokko" spun by Memento Vanitas, like a quiet shadow, gently affirms only your pace, without rushing or judging anything.

List of Distribution Services

Shuna 1st Original Song "Shugetsu no Kisetsu"

Virtual artist "Shuna" has released her 1st original song, "Shugetsu no Kisetsu."

This song layers warm human connections onto her signature nostalgic lyrics, singing them out.

Shugetsu no Kisetsu

Artist: Shuna

Release Date: July 5, 2026 (Sun)

Lyrics: Yusuke Nomura

Composition: Yusuke Nomura

Arrangement: Yusuke Nomura

── "I want you to listen to this song and remember the people you cherish and the irreplaceable memories."

The first original song release from RIOT MUSIC's Mugensho Record artist "Shuna"!

This supreme track, first performed at an online live event on May 13, 2026, received a huge response from listeners.

It is finally released to commemorate the 1st anniversary of Shuna's YouTube debut. The song beautifully fuses nostalgia and Japanese essence, perfectly fitting Shuna's "Japanese worldview," expressed with a vibrant and resonant singing voice.

It is an emotional song that deeply resonates with the listener's heart.

List of Distribution Services

Artist Profiles

Memento Vanitas (MEMENTOVANITAS)

Leader of the secret society Motchare-ra. Referred to as Lord Memento Vanitas by her members with deep respect.

Her singing voice has the power to "charm" and captivate listeners to the point where they can never forget her form. She has joined RIOT MUSIC to secure new members, expand her sphere of activity, and achieve world domination by utilizing RIOT MUSIC's power. Her real name is Mememe Hime Mori.

・Official X: https://x.com/memento_v_MGS

・YouTube: https://www.youtube.com/@MEMENTOVANITAS

Shuna (SHUNA)

A singer who loves nostalgia.

Influenced by being raised by her grandparents, she has a deep interest in traditional lifestyles and music.

Through her experiences, she has learned the joy of her singing voice moving people's hearts and connecting them through the "good fortune" of emotion. It was then that she met RIOT MUSIC, decided to realize her dreams in an even bigger and more vibrant way, and chose to join.

・Official X: https://x.com/shuna_MGS

・YouTube: https://www.youtube.com/@shuna_MGS

About VSinger Label "Mugensho Record"

"Infinite" expansion, "Origin" of virtual music

"Mugensho Record" is where the songs of "raw gems" of artists with "infinite" potential come together to form "songs."

・HP: https://riot-music.com/mugensho-record/

・X: https://x.com/Mugensho_RM/

About Music Agency "RIOT MUSIC"

RIOT MUSIC operates a wide range of projects centered around music, including the VSinger label "Mugensho Record," the VTuber support project "RIONECTION," and the VRChat activity support service "AdHoc."

With the mission of "Endless Creation and Experience," we aim to create and deliver content that moves the heart and changes the lives of those who experience it.

・RIOT MUSIC HP: https://riot-music.com/

・RIOT MUSIC Official X: https://x.com/RIOTMUSIC_info/

・Mugensho Record HP: https://riot-music.com/mugensho-record/

・RIONECTION HP: https://riot-music.com/rionection/

・AdHoc World URL: https://vrchat.com/home/world/wrld_87971444-32c7-4df5-b5fe-1a185ddacc76/info

・Permanent Audition Site: https://riot-music.com/virtualartistaudition/

Company Overview

RIOT MUSIC Co., Ltd.

・Established: July 1, 2022

・Capital: 10,000,000 yen (including capital reserve)

・Representative Director: Jun Funahashi

・Director: Genki Kubo

・Location: 8F, PMO Tamachi III, 4-1-28 Shiba, Minato-ku, Tokyo

・Business Activities: IP Production (VTuber business, artist production business)

・Official Website: https://riot-music.com/

Brave group Co., Ltd.

・Established: October 11, 2017

・Capital: 6.71 billion yen (including capital surplus)

・Representative: Representative Director Kaito Noguchi

・Location: 8F, PMO Tamachi III, 4-1-28 Shiba, Minato-ku, Tokyo

・Business Activities: IP Production/IP Platform/IP Solution

・Official Website: https://bravegroup.co.jp/

・Recruitment Site: https://recruit.bravegroup.co.jp/

・Official Media: https://media.bravegroup.co.jp/

・Official X: https://x.com/bravegroup_vt/

・Group Company List: https://bravegroup.co.jp/company/#group-company