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[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.

[Adulterous Love] A love song about a secret affair you can’t tell anyone about (41–50)

Other people’s relationshipsHitoto Yo

Yo Hitoto - 'Other People's Relationship' feat. SOIL & "PIMP" SESSIONS
Other people's relationshipsHitoto Yo

Hitoto Yo’s rendition of “Tanin no Kankei” feels a bit different from the usual songs about affairs.

It stays dry: whenever they meet, things heat up, and when it’s over they coolly go back to being two strangers and head their separate ways… yet you can still feel that they’ll never truly let each other go.

Kanae Kikko’s version is sultry too, but Hitoto Yo’s delivery is so intensely seductive it gives me chills.

earring on the right earKoresawa

Koresawa “Right Ear Piercing” [Music Video]
earring on the right earKoresawa

A heartrending love song about an affair that portrays a piercing, hidden longing beneath the small joys of everyday life.

Included on the March 2021 album “Pure Love Closet,” it became a talked-about track as the CM tie-in song for the audio streaming app stand.fm—one of Koresawa’s finest.

Its light pop sound is marked by a melody that somehow carries a touch of sadness.

Carefully tracing the delicate emotions of a woman who cannot leave, even while knowing where love is headed, this song reaches out to everyone struggling with complicated relationships.

I quit my dependency.matsuri

Dependence, I quit. / Matsuri (Official Music Video)
I quit my dependency.matsuri

A bittersweet heartbreak story spun by Matsuri, a singer-songwriter from Yamanashi Prefecture.

This coming-of-age ballad delicately portrays a heart swaying between love and dependency with finely crafted words.

It depicts the inner struggle of recognizing the difference between the feeling of “liking” and the fixation of “dependence,” and the resolve to part ways.

Written and composed by Matsuri herself, the track was released as a digital single in October 2020.

The genuine emotions of 17-year-old Matsuri at the time resonate deeply with listeners.

It’s a song that gently nudges those trying to move forward, even while carrying lingering feelings.

NAOHY

SOLIDEMO / NAO(HY cover)
NAOHY

Isn’t the pain of unrequited love something everyone knows? This song by HY, the mixture band behind many timeless hits like “AM11:00” and “366 Days,” is included on their fourth album, Confidence, released in 2006.

HY’s songs really do move the heart, don’t they? Many people probably sing them at karaoke.

When you want to feel a little wistful or reset your emotions, definitely try singing this song.

DropletMarushii

Marcy – Shizuku (Official Music Video)
DropletMarushii

“Shizuku,” released in 2020 by the rock band Marcy.

Even knowing the other person is married, if they invite you, you can’t turn them down because you love them; if they call, you end up going to see them.

It’s a song that sings of that painful feeling.

When you’re only contacted at their convenience, you can’t help but wonder if you’re just being used… but when someone you love is kind to you, it makes you happy and you can’t push them away.

This track pierces you with its vivid scenes and raw emotions.

I hope both men and women—everyone caught in a painful love—will give it a listen.

Place Of LoveLOVE PSYCHEDELICO

Place of love / LOVE PSYCHEDELICO cover Theme song of the film “Hirugao”
Place Of LoveLOVE PSYCHEDELICO

The drama “Hirugao: Lovers at 3 p.m.

on Weekdays.” Since this drama is themed around adulterous love, people in similar situations probably watched it while overlaying their own feelings onto it.

The song “Place Of Love” was written specifically as the theme for its film version.

Precisely because it was written for that purpose, it’s a track that conveys the bittersweet emotions felt during an affair, love with nowhere to go, and a painful reality.

The tone of the music also has a certain air of illicitness and tension, and just listening to it makes your heart race.

IenaiSoala

Soala – Ienai [Official Music Video]
IenaiSoala

A bittersweet, heart-tugging vocal captures the feelings of a woman who has fallen into a convenient relationship.

Her emotions, swaying between tender affection and regret, are woven with delicate words.

It’s striking how she knows she can’t be his “number one,” yet can’t stop herself from drowning in her feelings.

Released in August 2022 and included on the album LOVE, the song captivates with Soala’s translucent voice and a poignant piano-driven melody.

It’s a track that resonates deeply with those struggling in love that doesn’t go their way—whether long-distance or a convenient arrangement—offering comfort and profound empathy.