Under17

Under17 was a Japanese duo formed in 2001 by Haruko Momoi and Masaya Koike, that wrote and performed many moe songs that are featured in anime and video games.
History.
Some of the anime series where Under17 songs have been featured are DearS, Kujibiki Unbalance, Tenbatsu! Angel Rabbie, Mouse, and Popotan. This group has released several adult videogames' opening songs. On September 27, 2004, it was announced that Under17 would break up after their national tour, with Momoi and Koike going separate ways due to creative differences. Their final concert was held on November 20, 2004 at the Yokohama Blitz.
The band reunited for one song on August 31, 2008 during the Animelo Summer Live, performing "Tenbatsu! Angel Rabbie" with the members of MOSAIC.WAV.
Momoi and Koike briefly reunited again in March 2020 to perform at the event Susume Moe Denpa Shōnen!! Daifukkatsusai 2020!!: Sugisarishi Moe o Motomete.