Keina Suda ignites hearts with “Rubble ラブル” — the opening theme song for anime “Captivated, by You 夢中さ、きみに。”

Keina Suda returns with “Rubble ラブル”, a heartfelt new single, and the official opening theme for the anime sensation “Captivated, by You 夢中さ、きみに。” This bittersweet mid-tempo anthem captures the longing and tender emotions of reuniting with someone important, perfectly complementing the coming-of-age stories of the series.

Known as vocaloid producer Balloon and creator of the viral hit “Charles” (150M+ YouTube views across versions), Keina Suda blends intimate bedroom pop with widescreen emotion, creating songs that resonate deeply with young audiences.

“Rubble ラブル” showcases Keina Suda’s signature style — delicate yet cinematic, balancing heartfelt lyrics with layered production. The music video gives fans an immersive glimpse into the emotional world Keina Suda paints with this track, while the non-credit anime opening is also available online for a full multimedia experience.

The anime is based on the work of master storyteller Yama Wayama, who also gained attention with “Let’s Go Karaoke! カラオケ行こ!” It follows the unique everyday lives that arise from fleeting encounters, centering on the mysterious high school second-year student Miyoshi Hayashi at an all-boys school and his classmate Akira Nikaidou, who has gone through a “reverse high school debut.” The series portrays charming characters and relatable adolescent experiences in a compelling omnibus-style story.

Without a doubt, “Rubble ラブル” is a cinematic bedroom-pop anthem that hits straight to the heart — the perfect soundtrack for fans of anime, coming-of-age stories, and emotional storytelling.