Haruko Momoi  

Halko, momo-i, O.T.Queen, もあい はるこ, モモーイ, 桃井はる子

The individual referred to as "the Queen of Akihabara" is considered a god-sent child of the Akihabara culture. This term signifies that she possesses extraordinary abilities and talents in various fields such as voice acting, writing, composing, arranging music, playing the piano, singing, hosting radio programs, and column writing. In 2002, she collaborated with Masaya Koike to form the duo UNDER17, which produced songs for adult and mainstream video games and anime. After their final album Best Album 3 ~Soshite Densetsu e...~ and a live tour of the same name, UNDER17 disbanded in 2004 due to creative differences between the two musicians. Since then, she has pursued her solo singing career and was signed under avex mode as both a music composer and singer in 2006.