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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 (21–30)

You are a cigarette, I am a soap bubble.Lovely Summer Chan

A melancholic guitar-pop song by Lovely Summer Chan that delicately depicts the end of a bittersweet love.

Featured on her major-label debut album “LSC,” released in November 2016, the track expresses the faint feelings for someone out of reach and the fragility of having no choice but to accept it.

Through the contrast between “cigarettes,” a symbol of adulthood, and “soap bubbles,” which vanish in an instant, it strikingly portrays the distance between two people who can never truly meet.

It’s a highly relatable song that offers comfort to those who strive to move forward even while suffering from an unrequited love.

C.O.S.M.O.S. ~Cosmos (Autumn Cherry Blossoms)~Sandaime J Soul Brothers from EXILE TRIBE

Sandaime J SOUL BROTHERS from EXILE TRIBE / “C.O.S.M.O.S. ~Autumn Cherry Blossoms~” Music Video
C.O.S.M.O.S. ~Cosmos (Autumn Cherry Blossoms)~ by Sandaime J Soul Brothers from EXILE TRIBE

A song that’s also popular as an affair-themed track: “C.O.S.M.O.S.

~Akizakura~” by Sandaime J Soul Brothers from EXILE TRIBE.

It’s a great pick for anyone looking for a bittersweet love ballad from a male perspective.

From the very first lines, the lyrics hint at a fate where the two can never be together.

It’s truly a song about love that came “too late.” Even when your head knows you shouldn’t let your feelings grow, the more you sense it’s a love that can’t come true, the less you can stop your heart.

Meeting your destined person after you’re married is so cruel…

MissingToshinobu Kubota

Toshinobu Kubota – Missing [Official Video]
Missing Toshinobu Kubota

Toshinobu Kubota himself once said on TV that this song expresses the feelings of a man who falls in love with a married woman.

It conveys, from a male perspective, the helpless frustration and anger of thinking, “If only we had met earlier…,” along with the bittersweet longing you can’t forget no matter how hard you try.

Including its melody, it’s truly a masterpiece.

A love story with no return.Sonar Pocket

Sonar Pocket “A Love Story That Won’t Return.” [MV Full]
A love story that won't return. Sonar Pocket

A song released in 2015 by the three-member music unit Sonar Pocket.

It was created as a heartbreak song following their pure love ballad “Sukidayo.

~100 Times of Regret~,” which swept various digital distribution awards in 2011.

In love, timing is everything.

Many of us have probably thought, “If only I had fallen for them sooner, we might have ended up together.” Because time can’t be turned back, this song makes you want to treasure each encounter in the moment and not put off expressing your feelings.

It also reminds us that having the courage not to step into a forbidden relationship is important.

I've gotten stronger, Blue.Aimyon

Aimyon – I’ve Become Strong, Blue [OFFICIAL MUSIC VIDEO]
I’ve gotten stronger, Blue Aimyon.

This is a track from Aimyon’s fourth album, “Falling Into My Eyes Record.” After the album’s release, the music video for this song was unveiled and quickly became a hot topic.

Fans have reacted with comments like “It’s addictive” and “The indirectly expressed lyrics are outstanding.” Even knowing you’ll never end up together, you still can’t walk away on your own—the feeling of love with nowhere to go.

Haven’t you ever put on a brave face to cover up such feelings? It’s a song that quietly pierces the heart with the pain of unrequited love.

366 daysHY

HY – 366 Days (Official Music Video)
366 Days HY

A bittersweet love song that sings of unforgettable feelings for a former lover.

“If only I’d told you how I felt from the start, maybe I wouldn’t be hurting so much…” Even if you regret it, it’s already too late.

The more you try to forget, the more you can’t stop thinking about that person.

Perhaps such secret feelings you can’t tell anyone are best left to time.

But this song isn’t just about single-minded unrequited love.

In fact, it’s also said to be a song about a forbidden love for someone who already has a family.

What kind of love story does it bring to your mind? Featured on HY’s April 2008 album HeartY and used as the theme song for the film Threads of Destiny, this piece is a must-hear ballad for anyone struggling with love.

Sayonara, baby.Miliyah Kato

A bittersweet love number that sings of a heart swaying between true feelings and outward facades.

It’s a track by singer-songwriter Miliyah Kato, also known for hits like “Aitai,” released in 2008 as her 13th single.

The sound is danceable yet somehow ethereal and striking.

The lyrics feel like a direct transcription of a man and woman’s exchange, making it highly relatable.

Do you leave the mystery as a mystery, or do you act to learn more and dive deeper? Love really is difficult, isn’t it?