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A bittersweet song that trended on TikTok. A heart-wrenching ‘setsuna’ song.

In this article, we’ll introduce a selection of bittersweet songs—the kind that have trended on TikTok or are often used there.

Songs that bare honest feelings: true “setsuna” tracks.

Not only do the lyrics resonate with a wistful heart, but the overall emo vibe is sure to captivate you.

There are plenty of songs so heartrending they make your chest tighten.

Focusing mainly on love songs, we’ve picked out a variety of tracks.

Listening might vividly bring back memories, and they’re great choices for lyric videos, too.

Be sure to take your time and listen.

A heartbreaking song that trended on TikTok. Heart-wrenching ‘setsuna’ songs (21–30)

So it wasn’t me, huh.riria.

riria. / So it wasn’t me. [Music Video]
So it wasn’t me, huh.riria.

Singer-songwriter Riria gained popularity after posting self-accompanied performance videos on TikTok and YouTube.

Known for love songs from every perspective, her 2021 release “Watachi Janakattan Da Ne” (“So It Wasn’t Me”) expresses the bittersweet feelings toward someone who sends mixed signals.

Many listeners will relate to the lyrics that capture the frustration of staying in a more-than-friends, less-than-lovers relationship that never quite comes together.

Paired with her conversational vocal style, it’s a breakup song that closely mirrors the emotions of young people.

Give it a listen—it’s frequently used in TikTok videos themed around poignant love stories.

Magic of a Summer Nightindigo la End

This is a beloved summer song by indigo la End that has been getting renewed attention on TikTok long after its release.

The track captures a magical moment allowed only on summer nights, along with the fleeting nature of that instant.

The usually timid protagonist feels “as if I’ve become stronger” only on that special night spent with someone they love—a feeling that’s both poignant and relatable.

Released in June 2015 as part of the single Before I Get Sad, the song continues to captivate many listeners, surpassing 7.8 million views on YouTube.

It’s a track you’ll want to play on nights when you’re feeling a bit sentimental at summer’s end, or when you want to look back on a past romance as a beautiful memory.

rendezvousshaitoopu

A heartbreaking breakup song, “Rendezvous.” This track was released by Shy Toad, a rock band hugely popular among teens and people in their twenties.

It went massively viral on TikTok, so many of you may already know it.

The song portrays the inner feelings of a man who’s gone through a breakup.

Its scenarios are abstract, so listeners can overlay their own experiences and still enjoy it.

Also, the rhyming in the title phrase adds an extra emotional touch.

You let me do as I please, and yet…arekunn

You’re the one who let me fall for you / Arekun [Official Music Video]
You let me do as I please, and yet...arekunn

Are-kun is a singer-songwriter who has gained attention primarily through his online activities.

“Suki ni Saseta Kuse ni,” a track from his 2021 album Kokyuu (Breath), became a viral hit on TikTok.

The song conveys a heart-wrenching, burning sense of unrequited love—longing for someone who won’t turn around.

His sweet vocals over acoustic guitar tones offer a soothing comfort.

It’s a message song that depicts social media interactions and resonates with the younger generation.

Say goodbye to the love I clung to.matsuri

Say goodbye to clinging love. / Matsuri (Good bye, toxic love) [Official Music Video]
Say goodbye to the love I clung to.matsuri

This is a song by Matsuri that delicately portrays the feelings of a woman breaking free from a past dependence on love and trying to take a new step forward.

Released digitally in June 2022, it features striking lyrics about the struggle between telling herself she’s forgotten her former partner and the bittersweet memories that occasionally resurface.

The track gained popularity on TikTok and resonated with younger listeners, and a music video starring Yuu Miyazaki was also produced.

It’s a warm breakup song that offers comfort to those trying to face forward despite heartache and to those who still feel lingering attachment to past love.