Tokyu Denki & Gas Character "Terumaru"'s Original Song "Ii Hi ni Narumaru! Terumaru Song" Finally Completed!

Tokyu Power Supply is pleased to announce the completion of an original song for "Terumaru," the Tokyu Denki & Gas character, and the public release of its music video on April 28, 2026. This initiative commemorates the 10th anniversary of Tokyu Denki's service launch.

The song was produced by Sonomi Fukushima, a music producer with extensive experience providing music for dramas and commercials. The choreography was handled by Natsumi Adachi, known for her work on children's programs. The result is a catchy melody that makes you want to hum along and a rhythm that naturally gets your body moving, making "Terumaru" a name that children and adults alike can joyfully remember.

Through various 10th-annanniversary projects utilizing the Tokyu Denki & Gas character "Terumaru," our company aims to make the invisible electricity and gas services feel more familiar and deepen our relationship with everyone along the Tokyu Line and beyond. This project, specifically the original song "Ii Hi ni Narumaru! Terumaru Song," is part of that effort, striving to build new relationships with our customers.

Moving forward, our company will not only continue to provide energy services but also proactively launch various 10th-anniversary special projects that add color and fun to everyone's lives.

Please refer to the attached document for details.

## Attached Document

### Original Song and Music Video Overview

* Ii Hi ni Narumaru! Terumaru Song
* Ii Hi ni Narumaru! Terumaru Song Dance Version

### Broadcast Media

Official YouTube (Tokyu Denki & Gas Official Channel)

### Creator Profiles

#### Sonomi Fukushima

After graduating from Musashino Art University, Sonomi Fukushima worked at a music production company before establishing Ongakushitsu Inc. in 2014.

As a music producer, she has composed numerous songs for films, dramas, and commercials.

Since 2018, she has been living in Naoshima, Kagawa Prefecture, and Tokyo, starting her activities as a singer-songwriter. She has released five albums to date. As a parent-child unit "Sonomi Fukushima and Nagisa" with her daughter Nagisa Fukushima (11 years old), she is actively performing mainly in the Setouchi area. In addition to numerous live performances, she continues to express new forms of family through music, including appearing with her family in commercials and on television.

#### Natsumi Adachi

After winning the national Jogmate Dance Contest, Natsumi Adachi expanded her activities as a dancer in various fields including TV programs, commercials, stage performances, puppeteering, event direction, and instructing. Since 2010, she has been in charge of the character "Janjan" (puppeteering and voice) in NHK's "Inai Inai Baa! Atsumare! Wanwan Wonderland," who, alongside Wanwan, is popular with children.

Her choreography credits include NHK's "Otousan to Issho," "Minna DE Domo-kun," and TV Asahi's "Kamen Rider."

### Staff Comment

For the music, we focused on creating a melody that would be familiar to a wide range of generations, from small children to adults. We asked for a song with fun, memorable lyrical rhythms such as "Hikaru Terumaru" (Shining Terumaru) and "Attamaru Terumaru" (Warming Terumaru). For the dance, we incorporated choreography that even first-time viewers can easily join in, making it a dance that customers can enjoy together.

In addition to enjoying the music and videos at home, we hope that by attending events and singing and dancing together, more people will come to know "Terumaru."

### First Unveiling Event Overview

The first unveiling of "Ii Hi ni Narumaru! Terumaru Song" will take place at the Jiyugaoka Sweets Festa.

**[Event Name]** Jiyugaoka Sweets Festa

**[Date and Time]** May 4, 2026 (Monday/Holiday) 14:20-14:45

**[Venue]** Jiyugaoka Station Rotary Plaza

* Please note that performance times may change. Thank you for your understanding.
* Please check the Jiyugaoka Sweets Festa special website for event details.

* Ii Hi ni Narumaru! Terumaru Song
* Ii Hi ni Narumaru! Terumaru Song Dance Version