[7] On January 1, SM Entertainment confirmed the date, sharing a short teaser clip on their YouTube channel showing the group's members playing in the snow.

The juxtaposition of the rhythmic drum beats and soft piano riffs creates this dreamy, melancholic vibe.

[15] Composition and English lyrics for both versions were contributed by Jason Hahs, Colin Magalong, David Wilson and MZMC, with the latter two also handling arrangement.

[14] "Love 119" contains a prominent sample of the 2005 song "Emergency Room", as written and composed by Shin Dong-woo[16] and performed by South Korean band Izi.

[17] The song has been described as an "easy-listening", "dreamy"[18] dance-pop track reminiscent of late 1990s and early 2000s music,[12] characterized by a "sweet" piano riff[19] and drum beats.

"[24] The music video for Love 119 was first was previewed on January 1, 2024 along with the announcement of the song's upcoming release, with SM Entertainment publishing a 19-second long teaser onto their official YouTube channel.

[8] The music video was also teased on the group's official website, with still images from the clip being posted to a microsite that was styled to look like an early 2000s mobile phone.

[39] At the 13th Circle Chart Music Awards on January 10, the group performed "Love 119" in a medley along with previous single "Get a Guitar.