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Lovely love song

[An Adulterous Love] A love song about a secret affair you can't tell anyone about

Affairs are generally considered taboo by society, but sometimes you might fall for someone without knowing they’re married.

You probably have feelings you’re keeping tucked away in your heart, too.

This article introduces songs about “affairs.”

Some songs depict people already in an affair, while others are about accepting there’s no future and choosing to part ways.

Many of these tracks express painful emotions, so you may find one that resonates with how you feel.

If you’d like, try listening to any songs that catch your interest.

[An Affair of the Heart] A love song about a secret, unspoken romance (71–80)

LOVE (I want to hold you)sawada kenji

Julie’s bittersweet, grown-up love song.

From the very beginning, you can tell he’s dying to hold his lover tight.

A cheating song told from a man’s perspective is unusual.

It seems the woman has a family, while the man is single.

Even though she loves him, there’s someone who loves her even more, and that makes him incredibly lonely.

Since it would be bad if her affair were exposed, the man ultimately decides to step back.

I could never say I like you.fayray

A ballad delicately portraying the feelings of a woman swaying between urban loneliness and an unrequited love, released in January 2003 as Fayray’s 14th single.

While her feelings deepen for someone who is already engaged, she fears breaking their relationship and can’t bring herself to confess—emotions depicted alongside a beautiful piano melody.

Also chosen as the theme song for the Yomiuri TV/Nippon TV drama “Message: Words Keep Betraying,” this work showcases Fayray’s growth as a singer-songwriter.

It’s a song that offers solace to those suffering from the pain and conflict of love, recommended for anyone struggling with an affair or unrequited feelings.

pure whiteFujita Maiko

Maiko Fujita “Pure White” Music Video
pure whiteFujita Maiko

This is a work by Maiko Fujita that portrays a forbidden love that reason cannot suppress, using the motif of a white flower blooming in the dark night.

Set in a foggy city bathed in moonlight, it delicately weaves the precarious and heartrending fate of a man and a woman burdened with loneliness.

Released in March 2025, it was included on the album “Unrequited Love” as the 2nd anniversary song for the smartphone romance game Ikemen Villains: A Dark Love That Blooms at Night.

It is a quiet companion for those who are in a love they cannot tell anyone about, or who have once burned with the purity of love.

wanderingAKASAKI

[AKASAKI] Wandering / HAIKAI (Lyric Video)
wanderingAKASAKI

A bittersweet love story portrayed as if wandering through the city at night.

With the purity of youth and a delicate sensibility, AKASAKI sings of a heart swayed by love.

Together with a chorus that soars in the hook, it becomes a gem of a ballad that beautifully conveys guilt and yearning.

Released in April 2025, this work, though arranged simply with piano and guitar, resonates with young listeners thanks to its richly expressive vocals.

Not every love story is pure and straightforward.

This song accompanies those who wrestle with the feelings smoldering deep in their hearts and those who hesitate to find the courage to take a step forward.

Sentimental Sisteryonige

yonige “Sentimental Sister” Official Music Video
Sentimental Sisteryonige

Set to a heartrending vocal, this song—told from a woman’s perspective—portrays a heart swaying within a forbidden love.

The protagonist, unable to escape tangled relationships and events of the past, conveys her feelings with raw, relatable honesty.

Released in July 2016 as part of yonige’s mini-album “I Want to Be a Snail,” the track captures the mindset of a woman who tries to move forward while still bound by past romances.

For anyone who has grappled with complex emotions like longing, regret, and guilt, it’s a song that’s impossible not to relate to.

selling oneselfRosu

A beautiful tragic love song that portrays the heartrending emotions of a woman living in the night city.

Amid a dark, mysterious atmosphere, the protagonist gives herself to a man she does not even love, while continuing to harbor unwavering feelings for the one she truly longs for.

In a darkness without even a single ray of light, the searing emotions of a woman consumed by an impossible love are vividly expressed through Ros’s protean vocals.

Released in March 2022, the song is also included on the album “Yoru no Shizu.” It is a track that deeply resonates with those pained by unrequited love or troubled by a forbidden romance.

coming home in the morning (after staying out all night)Hamano Haruki

Hamano Haruki “Morning Return – Asagaeri” (Official Music Video)
coming home in the morning (after staying out all night)Hamano Haruki

A gem-like love song that delicately portrays the aching feeling of being unable to confess one’s true feelings.

Singer-songwriter Haruki Hamano masterfully captures the complex emotions of a woman struggling with being “the convenient one,” drawing a flood of empathy on social media.

Released in 2023, the song gained traction on TikTok and earned high marks on streaming platforms.

It carefully depicts a woman’s wavering emotions—caught between hope and self-loathing—in a relationship where she shares the night with someone yet can’t become their first choice.

This work offers comfort and companionship to those who have experienced unrequited love.