First idol group "Märmi" born from seju!

The first idol group "Märmi" (read: Marumi) has been formed and will debut from "seju," an entertainment production company gaining attention, especially among Gen Z.

The group's core concept is "The continuation of dreams, drawn together."

They aim to be the next generation of idols, moving towards an unseen future together with fans, sharing a new story from the same perspective.

Official Website

https://marmi.tokyo/

Official SNS

Instagram / TikTok / YouTube

"Märmi" will make their debut appearance at "NAMICS presents TGC NIIGATA 2026 by TOKYO GIRLS COLLECTION" to be held in Niigata Prefecture on July 18, 2026 (Sat).

NAMICS presents TGC NIIGATA 2026 by TOKYO GIRLS COLLECTION

Official Website: https://tgc.girlswalker.com/niigata/2026/

Date and Time: July 18, 2026 (Sat) Doors open 12:30 / Show starts 14:00

Venue: Toki Messe Niigata Convention Center

Furthermore, on September 4, 2026 (Fri), they will hold their debut one-man live performance "Märmi debut LIVE" at Ebisu The Garden Hall.

Please look forward to the continuation of the dreams they will paint.

Debut One-Man Live Overview

Title: "Märmi debut LIVE"

Date and Time: September 4, 2026 (Fri) Doors open 17:00 / Show starts 18:00

Venue: Ebisu The Garden Hall

Tickets

Premium Ticket

Price: 6,600 yen (tax included)

Perk 1: Participation in a farewell event with all members (video recording allowed)

Perk 2: Priority entry

General Ticket

Price: 2,200 yen (tax included)

Ticket sales page here

June 30, 2026 (Tue) 19:00 General sales begin (first-come, first-served)

Märmi Members

Meia

Date of Birth: June 6, 2008

Birthplace: Kumamoto Prefecture

Height: 153cm

Hobbies: Watching movies and dramas, cafe hopping, cooking, coordinating outfits

Special Skills: Dancing, falling asleep anywhere quickly, reading the room

Instagram / TikTok / X / HP

Yuyu

Date of Birth: January 24, 2005

Birthplace: Chiba Prefecture

Height: 158cm

Hobbies: Cafe hopping, traveling

Special Skills: Falling asleep anywhere, playing the oboe

Instagram / TikTok / X / HP

Aoi

Date of Birth: January 31, 2008

Birthplace: Kanagawa Prefecture

Height: 156cm

Hobbies: Cafe hopping, traveling

Special Skills: Shot put, dodgeball

Instagram / TikTok / X / HP

Kaori

Date of Birth: October 20, 2005

Birthplace: Tokyo

Height: 160cm

Hobbies: Watching my dog, makeup, collecting characters

Special Skills: Tea ceremony, kimono dressing

Instagram / TikTok / X / HP

Sae

Date of Birth: August 3, 2006

Birthplace: Ishikawa Prefecture

Height: 162cm

Hobbies: YouTube, supporting my oshis

Special Skills: Remembering people's names and faces quickly

Instagram / TikTok / X / HP

Aishi

Date of Birth: February 5, 2008

Birthplace: Chiba Prefecture

Height: 154cm

Hobbies: Cooking (Japanese food, sweets)

Special Skills: Walking fast in crowds

Instagram / TikTok / X / HP

Hazuki

Date of Birth: August 8, 2007

Birthplace: Osaka Prefecture

Height: 166cm

Hobbies: Watching anime/movies

Special Skills: Rap, impersonations

Instagram / TikTok / X / HP

Arisa

Date of Birth: November 26, 2007

Birthplace: Tochigi Prefecture

Height: 159cm

Hobbies: Karaoke, listening to music

Special Skills: Makeup, being able to sleep a lot

Instagram / TikTok / X / HP

About seju

A production company that creates the "kawaii" of the new era.

They manage and produce talent without being confined to SNS or mass media, creating icons of the "era" loved by many, from online to the real world.

URL: https://seju.tokyo/

<Company Operating seju>

Company Name: GROVE Inc.

Location: Roppongi Hills Mori Tower 31F, 6-10-1 Roppongi, Minato-ku, Tokyo

Representative: Junki Kitajima, Representative Director and Representative Director