Kaoru Hashimoto, frontman of Helsinki Lambda Club, is set to make his solo debut with the release of his first EP titled “Diary” on Wednesday, September 24.
Inspired by American musician Youth Lagoon’s album Heaven is a Junkyard, Hashimoto embarked on this solo project to explore and organize the many layers of his interests and inner self. He aimed to express his individuality by crafting music that reflects each unique aspect of his personality. The EP features five varied tracks and is produced by Keigo Tatsumi from never young beach.
Ahead of the full release, the track “Myogadani” — named after the Tokyo neighborhood where Hashimoto once lived and still regards as a place of mental solace — was released digitally on Wednesday, August 6. The song captures the tranquil flow of time in that area.
Hashimoto has also shared his thoughts on the project, highlighting the personal and creative significance of this solo endeavor.
Hello everyone,
I’ve chosen to embark on a new chapter of my musical journey under my own name, Kaoru Hashimoto. While I’ve dabbled in solo performances and self-produced records over the years, this feels like a deeper commitment—a way to truly explore and express myself as an artist.My ideas have always been abundant, sometimes too much to contain or shape fully. But recently, I’ve begun to uncover a clearer vision of what I want to create and who I want to collaborate with. With that clarity, I’m excited to dive into this project wholeheartedly.
This collection, titled “Diary,” is an intimate snapshot of everyday life—raw emotions, quiet moments, and reflections rooted in the mundane yet meaningful. The first song, “Myogadani,” is a sonic portrait of a place I once called home, capturing its calm rhythm and the essence of daily living there.
I hope these sounds become a subtle companion to your own moments—whether during a peaceful walk, simple chores, or any quiet space in your day. Let’s share these small, honest stories together.
— Kaoru Hashimoto
Diary

Artist: Kaoru Hashimoto
Release Date: Wednesday, September 24, 2025
Format: 5-track EP
Specifications: 12cm CD / Digital Download
Price: CD ¥1,980 (tax included) / Download ¥255 (tax included)* Prices may vary depending on the digital service
Catalog Number: HAMZ-035
JAN: 4514306024654
Label: Hamsterdam Records / UK.PROJECT
TRACKLIST
Seikatsu no Houkoku (Report on Life)
Kimi o Matsu (Waiting for You)
Fruits Tabetai (I Want to Eat Fruit)
Setagaya
Myogadani
Artist: Kaoru Hashimoto
Release Date: Wednesday, August 6, 2025
Format: Single-track Digital Single
Download Price: ¥255 (tax included)* Prices may vary depending on the digital service
Catalog Number: HAMZ-033
JAN: 4514306024548
Label: Hamsterdam Records / UK.PROJECT
Pre-add / Pre-save: https://helsinkilambdaclub.lnk.to/Myogadani