[2026] A summer song that tightens your chest with bittersweet feelings. A classic summer tune that touches the heart.

fireflyFukuyama Masaharu

Masaharu Fukuyama – Hotaru (Full ver.)

A gentle yet powerful ballad, this piece resonates with the heart through Masaharu Fukuyama’s soft and passionate vocals.

Like fireflies faintly glowing on a summer evening, it depicts the fleeting passage of time and bittersweet feelings for someone dear, reminding us of the importance of living fully within our limited time and loving someone deeply.

Released in August 2010 as Masaharu Fukuyama’s 26th single, it was also selected as the theme song for the NTV drama “Mioka: The Days You Were Here.” When you’re longing for something to accompany the loneliness and sentimentality felt at the end of summer, listening to this song will wrap you in warmth.

Front memorySuzuki Emiko × Kameda Seiji

Emiko Suzuki × Seiji Kameda “Front Memory” — Theme song for the film “After the Rain”

On a summer evening, over a soundscape that feels somehow nostalgic, Emiko Suzuki’s powerful voice rings out.

Evoking the tenderness for seasons gone by and the ache of an unfulfilled love, yet portraying a protagonist who keeps looking forward, believing in a fleeting moment of brilliance, this song deeply moved many as the theme for the May 2018 film “After the Rain.” It’s a track you’ll want to add to a playlist full of summer memories—perfect for when you want to indulge in a touch of sentimentality or awaken those bittersweet recollections.

Brilliant RainKing Gnu

King Gnu – Rain Radiantly

This song, which depicts the relentlessly pouring rain from a unique perspective, is a moving piece that sings of the strong will to keep moving forward even in difficult times.

The arrangement woven by violins, cellos, and female chorus gently envelops the noisy guitar sound, suggesting a new musical frontier for King Gnu.

Released in July 2022, it captured the hearts of many viewers as the theme song for TBS’s Sunday drama Old Rookie.

It is also included on the album Stardom.

Lyrics that evoke summer and an open, liberating sound enhance the feeling of the season.

Beautiful finsupittsu

Spitz / Beautiful Fin

Released in April 2023 as the theme song for the film Detective Conan: Black Iron Submarine, this track is a clear, translucent work themed around an oceanic worldview.

Through the symbolic expression “beautiful fins” depicted by Masamune Kusano’s delicate vocals, a profound world emerges where fragility and hope intersect.

As Spitz’s first tie-in with the Conan series, the song debuted at No.

1 on the Oricon Weekly Singles Chart and has been beloved by many fans.

It’s recommended for seaside drives in summer or for quiet nights when you want to calm your mind.

Stars swimmakaroni enpitsu

Macaroni Enpitsu “Hoshi ga Oyogu” MV

It’s a poignant rock number that captures a longing for a lost summer.

Layering the grief of losing someone dear with the restless urgency of the season, it portrays a struggle against a fate that vanishes as fleetingly as fireworks.

Released in April 2022, the song was written as the opening theme for the TV anime Summertime Rendering, and is also included on the album The Place Where the Soul Belongs.

It’s the perfect track for moments at summer’s end when you’re thinking of someone special or looking back on youthful memories.