[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 (1–10)
A little more, just a bit moreZARD

A song by ZARD about a love that cannot come true.
Even while knowing it’s a forbidden relationship, the protagonist finds herself wishing to be loved “just a little longer.” The song captures her emotions, and because the love is taboo, her earnest feelings resonate with a striking purity.
There’s an anecdote that Izumi Sakai, who also wrote the lyrics, felt saddened while singing it—an episode that speaks to the song’s poignancy.
Released in September 1993, this work compels deep reflection on the weight of unrequited love and the intensity of loving someone.
Run through the nightsupittsu

A Spitz song that portrays an elopement born from a forbidden love.
Knowing theirs is a relationship no one will bless, it depicts a poignant night as the couple runs off into a world for just the two of them.
Aware that they’re connected not by a destined red thread, but by something far more fragile, they still try to believe in that bond alone—an attitude that leaves you with a sense of helpless sorrow.
The track was included on the classic album Mikazuki Rock, released in September 2002, and was later used as an insert song in an anime.
It’s a work that confronts you with the purity and peril of a love you’d uphold even while turning your back on the world, prompting deep reflection.
MELROSE ~A Promise Not to Love~EXILE ATSUSHI

A ballad that portrays the bittersweet feelings of a man and a woman drawn to each other despite a promise not to fall in love.
The wavering heart caught between reason and emotion pairs beautifully with EXILE ATSUSHI’s deeply expressive vocals.
Released in December 2012 as his third solo single, the song is included on albums such as Music and Love Ballade.
It was also featured as the ending theme for NTV’s Sukkiri!!, garnering widespread attention.
This is a track that resonates deeply with those who relate to the complexities of adult romance or who are striving to move forward while carrying a sense of longing.
AFFAIRSuga Shikao

This is a song by Suga Shikao that portrays the deep anguish of a forbidden love—two people drawn to each other despite knowing it’s not allowed.
Released in October 2000, it was used as the theme song for the drama “The Lover’s Code: Wanting to See You.” There’s an anecdote that the track was refined for over three years before completion.
The torment of guilt alongside feelings so deep there’s no turning back makes your chest tighten, doesn’t it? If you listen to it on a night when you’re troubled by a complicated love with no way out in sight, you may find yourself empathizing deeply with its helplessness.
balladKetsumeishi

Ketsumeishi’s “Ballad,” a hugely popular affair song, is a masterpiece that brings you to tears from the very first notes of the intro.
The song portrays the aching feelings of a man who can do nothing but wait to hear from the woman he loves.
An affair is a relationship where even contacting each other feels forbidden… yet he truly wants to see her, to hold her—an unbearably bittersweet love that brings you to tears.
hydrangeakyanai

A song woven by Kyannai, filled with poignancy and pain.
Released in May 2022, this work delves deeply into the mindset of the one who cheats.
While depicting what appears to be a close couple, it captivates with a dramatic development that reveals a hidden tangle of romantic entanglements.
The lyrics skillfully intertwine the transience of love and the complexity of human relationships with the hydrangea’s flower language, “infidelity,” drawing you in before you know it.
It’s a track that gently stays by the side of those who harbor a secret love they can’t tell anyone, or who struggle with the complexities of romance.
even ifHirai Ken

It’s a song by Ken Hirai that conjures up the image of a man at a bar counter, tilting his glass and hiding his true feelings as he sits beside someone gazing at their lover’s ring.
You can almost feel the protagonist’s painful frustration as he wishes they’d miss the last train, yet swallows the words instead.
Released in December 2000, the track reached No.
3 on the Oricon weekly chart and is also included on the classic album “gaining through losing.” For those entangled in a forbidden love—knowing it won’t come true yet unable to stop their growing feelings—this song may quietly keep you company.


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