An idol sings a mutual-love song. A collection of happy love songs.
Among the songs sung by idols, there are so many love songs! From bittersweet ballads to upbeat tracks that capture the flutter of romance, there’s a wide variety.
In this article, we’ll be introducing songs that celebrate mutual love from among those many romance tracks.
Each one tells the story of two people who care for each other, so you’re sure to find heartwarming songs that make you feel warm inside.
Be sure to listen while thinking of someone special to you.
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Mutual Love Songs Sung by Idols: A Compilation of Happy Love Songs (81–90)
Dreaming 15-year-oldSumairēji

S/mileage’s major-label debut captures the summer romances of 15-year-old girls, filled with gentle vocals and bittersweet feelings.
Eurobeat-style synths blend with a kayōkyoku-inspired melody, tenderly expressing the fluttery first loves unique to adolescence.
Depicting a girl’s heart swaying between idealized scenes—summer festivals, fireworks, seaside dates—and reality, the song was produced by Hello! Project’s renowned producer Tsunku♂.
Upon its May 2010 release, it reached No.
5 on the Oricon charts and went on to win the Best New Artist Award at the 52nd Japan Record Awards.
It’s a perfect track for those who want to relive the sweet-and-sour memories of youth or empathize with a down-to-earth teenage girl’s feelings of love.
Slow motionNakamori Akina

A debut work distinguished by its mellow melody and crystalline vocals that gently embrace a budding crush on someone met by the seaside.
With an expressiveness hard to believe for a 16-year-old, Akina Nakamori beautifully captures the fateful moment of encounter.
Released in May 1982 and included on the album “Prologue [Jomaku],” it debuted at No.
58 on the Oricon Weekly Singles Chart, quietly winning listeners’ hearts.
The pure feelings of a girl captivated by the sight of a man walking along the sandy beach are sung with the freshness of a sea breeze.
Evoking the premonition of love that everyone experiences as if it were a scene from a film, this piece is one to enjoy on a tranquil spring afternoon.
Gentle RainKoizumi Kyoko

The lyrics penned by Kyoko Koizumi herself delicately depict loneliness in the city, chance encounters, and a heartfelt longing for the other person.
Released in February 1993, the song drew attention as the theme for the drama “To Love” and became a major hit, reaching No.
2 on the Oricon charts and selling over 950,000 copies.
Koizumi’s voice, carried by Shoko Suzuki’s beautifully composed melody, blends poignancy with warmth, gently resonating with listeners.
It’s a song you’ll want to listen to alone on a rainy day—one that softly soothes the heart when you’re feeling the loneliness of the urban bustle or holding onto thoughts of someone dear.
Bittersweetarashi

A classic Arashi song that expresses a sweet yet bittersweet love with a warm melody that gently embraces the heart.
This gem of a pop ballad showcases the blend of sweetness and bitterness in love through delicate harmonies and elegant dance performance.
Released in February 2014 and used as the theme song for Fuji TV’s Monday 9 PM drama “Heartbroken Chocolatier,” it features a sweet four-on-the-floor house sound infused with technopop elements, creating a soft, springlike atmosphere.
It’s a song that stays close to those who can only meet the one they love in their dreams or who carry an unrequited love.
Love so sweetarashi

Released by Arashi in February 2007, this song shone brilliantly as the theme for the drama “Boys Over Flowers 2 (Returns).” Its sacred melody, which beautifully depicts the belief in a bond between two people even when they’re apart—as if petals were dancing—teaches us one form of youth.
As the cityscape becomes dyed in spring colors, Arashi’s vocals will gently give you a supportive push forward.


