Loli Kami Requiem"[a] is a song by Japanese artist Ui Shigure from her debut album The Rain Doesn't Stop Yet [ja].

[b] Featuring vocals by Shigure in her nine-year-old schoolgirl persona and narration by Tamaki Inuyama, it was composed by D.watt and written by Maron, both members of IOSYS.

[4][5] Ui's sadistic way of taunting[6] has been described as a mesugaki trope; that is, provocative behavior by young girls to sexually entice adults.

Right in the middle part of the song, in an act of divine purging, the music cuts to her firing her Ui Beam to electrocute sludge creatures while the narrator explains the situation and the attack.

[8] Additionally, she said that the lyrics she had received were far more brutal compared to the final revision, calling it seemingly "as painful as hitting someone with concrete".

[20] The music video for the song was released on September 10, 2023, on her YouTube channel, after she had performed it virtually in a livestream[‡ 2] that revealed nine-year-old Ui's three-dimensional model.

[27] The dance featured during the song's chorus, which has been described as "of overwhelming quality",[28] "brisk" and "hard to reproduce",[29] helped amplify the sudden growth in popularity.

[38] In what was originally a fan edit, the dance appeared in the Spotify background video of "9mm" by rap group Memphis Cult.

"[43] Kitagawa praised the detailed structure and noted its unique rise in popularity as an intersection between music video and song.

[5] In a Real Sound analysis on 2000s Japanese Internet culture, Natsume Sogami echoes this assessment, who attributes it to the song's "easy-to-understand Nico Nico Douga-style comments" and being a work by IOSYS, who exerted influence on otaku culture at the time, in addition to having an idol-like call-and-response element.

The company posted an apology on their website on October 2 for their "extremely inappropriate behaviour that lacks consideration and self-awareness", then deleted their TikTok account.

[48][49] On October 3, Daisuke Yokoyama, the former actor for the children's television program Okaasan to Issho, deleted a video on TikTok of him performing the dance, after it had faced criticism on social media.