© Himerabu

HJ Co., Ltd. (Headquarters: Shibuya-ku, Tokyo; President: Hayato Ikeda) operates the elementary school princess idol group 'Himerabu'. On September 23, 2026 (Wednesday, national holiday), the group held a 1st anniversary event 'Himerabu 1st Birthday Party' at the Event Hall of the 2nd Campus of Harajuku Belle Epoque Beauty College.

A total of 400 fans attended the two performances (Part 1 and Part 2). The event was filled with surprises, including the appearance of the sister group 'Mirakyuru' as a secret guest and the first performance of the new song 'Wagamama Birthday'.

Event Overview

Event Name: Himerabu 1st Birthday Party

Date: September 23, 2026 (Wednesday, national holiday)

Venue: Harajuku Belle Epoque Beauty College, 2nd Campus Event Hall

Performances: Part 1 at 12:00 / Part 2 at 16:00

Attendance: 400

Performers: Himerabu (Riripi, Rarissa Natsume, Mashiina Shiina, Kanna Hanatani, Seian Hazumi, Runa Maeda)

About one year after their debut, this event was planned as a milestone to celebrate Himerabu's journey with their fans. As the members called out, 'Let's sing and dance a lot together and have a wonderful time!', the venue was filled with a warm and enthusiastic atmosphere throughout both performances.

Event Highlights

A warm and unified atmosphere filled the venue.

From the start of both performances, the audience was excited with cheers. The stage was filled with a warm sense of unity as members and fans sang and danced together, celebrating the first anniversary.

Surprise Secret Guest: Mirakyuru Appears

One of the highlights was the surprise appearance of Himerabu's sister group 'Mirakyuru' as a secret guest. Mirakyuru is a patissiere idol group consisting of five 4th-grade elementary school students. Like a patissiere who mixes various good ingredients to create wonderful sweets, they aim to utilize each member's individuality to deliver wonderful moments to fans. The unannounced surprise appearance drew gasps of amazement from the audience, creating the biggest stir of the day.

First Performance of New Song 'Wagamama Birthday'

At the event, the new song 'Wagamama Birthday', created for this day, was performed for the first time on stage. As the song began, the audience spontaneously shouted 'Congratulations!', and the venue was filled with warm air celebrating the members' first anniversary, along with their singing voices.

*From September 23 (Wednesday, holiday), two songs '100% Daichukki (2026 ver.)' and 'Wagamama Birthday' are available for early release on TikTok. *The distribution and MV release of these songs are scheduled for October 7 (Wednesday).

About Himerabu

'Himerabu' is a princess idol group consisting of elementary school members. With 'elementary school princess gal' Riripi as the center, the group was formed to become a symbol of admiration for their generation: a princess idol. In August 2025, four members were selected from an audition with over 500 applicants nationwide. Their debut song '100% Daichukki', produced by NOVECHIKA (known for works like Shinako and Takeshita Paradise) and TETTA (a two-time Japan Record Award winner), has garnered significant attention, with over 500,000 MV views and over 17 million TikTok video views. After additional member auditions, Seian Hazumi and Runa Maeda joined, and the group is currently active with six members.

[Himerabu Official SNS]

Instagram: https://www.instagram.com/himelove_official/

TikTok: https://www.tiktok.com/@himelove_official

X: https://x.com/himelove_idol

YouTube: https://www.youtube.com/@himelove_official

Company Profile

Company Name: HJ Co., Ltd.

Representative: President Hayato Ikeda

Headquarters: 1-22-1 Shibuya, Shibuya-ku, Tokyo, CH Building 2F, 3F, 4F

URL: https://hj-s.co.jp

Established: February 2006

Capital: 523,924,000 yen

Employees: 120

Business: Media business, production business, advertising agency business, event business

<Contact for this release>

HJ Co., Ltd., Public Relations

https://tayori.com/f/hjcontact-prtimes/

FACT BOX

  • Source: PR TIMES
  • Category: Event