The highly anticipated premiere of the anime adaptation of Gals Can’t Be Kind to Otaku!? in April 2026 has brought not only a highly discussed school romantic comedy but also a tremendous impact on the Asian music scene. A huge part of this sonic and visual phenomenon is due to its electrifying opening theme, titled “HIDE AND SEEK”.
(G)I-dle (idle): The K-pop Superstars Behind the Mic
The opening theme “HIDE AND SEEK” is performed by the world-famous K-pop group idle, also globally recognized in the industry as (G)I-dle or i-dle. Across the digital ecosystem, streaming platforms, and social media, promotional content about their participation in this anime is frequently found under the official hashtags #아이들 (for the Korean audience) and #アイドゥル (for the Japanese audience).
The group’s venture into this series’ soundtrack represents a fascinating bridge between the South Korean music industry and Japanese animation. The group’s participation in this major project was made possible courtesy of the recording giant Warner Music Japan Inc.. The powerful and charismatic vocal presence of idle’s members perfectly captures the modern energy and cultural clash experienced by the story’s characters.
The Music Video: The Textless Opening (OP)
To accompany the song’s massive success, producers have not made fans wait. The official music video for the opening song in its “textless” or “creditless” format is now available for streaming on platforms like YouTube.
The release of this music video has been a major event, allowing fans to fully appreciate the fluid animation direction and enjoy the visual aspects without the classic lyrics or names superimposed on the screen. The video invites fans into the colorful high school atmosphere and the gyaru culture, while idle’s catchy rhythm blasts in the background. In addition to the YouTube release, the official music campaign included links for users to Pre-Add or Pre-Save the song in advance across their various audio platforms.
Composition and Musical Team of “HIDE AND SEEK”
The success of an anime track does not lie solely with its performers, but also with the creative talent behind its score. The lyrics for “HIDE AND SEEK” were co-written by Jamil Kazmi, Hayato Yamamoto, and Kona Rose Jackson. Likewise, the song’s catchy composition was handled by the same talented trio: Kona Rose Jackson, Hayato Yamamoto, and Jamil Kazmi. Finally, to give the melody its vibrant touches, the musical arrangements were crafted by Lucky West and Hayato Yamamoto.
The Ending Theme: sunsoogirl Completes the Musical Experience
Although the theme and video performed by idle steal much of the spotlight, it is essential to highlight the artist responsible for closing the emotions of each episode. The ending theme is titled “Ishō Nakako” (which translates to “Friends for life”). This musical piece that concludes the chapters is performed and composed by the artist sunsoogirl, featuring lyrics originally written by Hanako Kawata.
For anyone wanting to enjoy both the amazing music video by idle and the full episodes of the series, they are officially available on the Crunchyroll streaming platform.
I really like G-iDLE and this opening with them is great!
The remix made for the opening of this show has no business being so good. It is the best part of the show.
it’s very summery