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

I became someone else’s girlfriend.wacci

wacci “I Became Someone Else’s Girlfriend” Music Video

This is a song by the pop-rock band wacci that portrays the bittersweet feelings of a woman who, while still holding on a little to her feelings for an ex, has begun to move into a new relationship.

According to vocalist Yohei Hashiguchi, it’s “a song about someone who chose to love for themselves and took a step forward, glancing back just a little.” The lyrics, which feel like she might be pushing herself a bit, are achingly tender and really tighten your chest, don’t they? The fact that the track has surpassed 100 million total streams shows just how many people resonate with it.

expand_lessRaise the rankingexpand_morelower

yuri

Report a problem

Midnight Girlimase

[imase] Midnight Girl (Music Video)

With its laid-back beat and faintly nostalgic melody, it feels like it melts into the stillness of the night.

Crafted by imase—an artist gaining attention at home and abroad after breaking out on TikTok—this track is a groovy number with a touch of R&B.

Its bittersweet, wistful worldview quietly reflecting on a past love really strikes a chord.

The gentle vocals further underline the sentimental mood.

Released in January 2024, it was chosen as the theme song for the drama “Chaser Game W: My Power-Harassing Boss Is My Ex-Girlfriend,” and was later included on his debut album, “Bonsai.” It’s a chill track that softly untangles the heart—perfect for nights when you want to drift into thought at the end of the day.

Cinderella BoySaucy Dog

Saucy Dog “Cinderella Boy” Music Video <5th Mini Album “Lazy Sunday” Released on 2021.8.25>

Written from a female perspective, this song is a heartfelt love ballad that portrays unrequited feelings and the turmoil of betrayal.

Paralleling the story of Cinderella, it poignantly captures the moment when, like magic fading after midnight, she notices her lover’s true self beneath the idealized image.

Self-deception in turning a blind eye to betrayal, and the complex emotions of anger and dependence, are conveyed over a wistful melody.

Included on the mini-album “Lazy Sunday,” the track was released digitally in August 2021.

It debuted on Music Station in 2022 and ranked second in the annual karaoke charts.

It’s a must-listen for anyone struggling with one-sided love or feeling hurt by a complicated relationship.

Agate Caressed by NightAyase

Yoru Naderu Agate / Ayase (self cover)

Composed by Ayase, best known for YOASOBI, this track—originally released in 2019 featuring Hatsune Miku on vocals—was later followed by Ayase’s own self-cover.

Together, the two versions have amassed around 15 million views on YouTube.

The lyrics, which depict a farewell on a train platform after the last train has gone, delicately trace unspoken gratitude, lingering regret, and a gentle wish for the other person’s happiness.

Its bittersweet, wistful melody also went viral on TikTok, where related hashtags have surpassed 24 million views, earning overwhelming support from younger audiences.

Included on the EP “Ghost City Tokyo,” this piece is sure to resonate deeply with anyone who has experienced parting with someone dear or carries feelings they were never able to put into words.

Only a single voicerokudenashi

Rokudenashi “Just One Voice” / Rokudenashi – One Voice [Official Music Video]

An impressive song that delicately portrays the feelings of modern people struggling with loneliness and self-denial.

It gently chronicles the hurt caused by casual words, the act of holding back tears behind a smile, and the resolve to face the difficulty of simply “living.” Since its release in December 2021, this work—beautifully harmonizing a soft voice with a tender melody—has spread empathy primarily through social media, reached No.

1 on Hong Kong’s Spotify Viral Chart, and gained popularity across Asia.

It’s a song that offers comfort to those who find life hard or who long to be understood.