Miki Hoshii (Akiko Hasegawa)

Miki Hoshii (Akiko Hasegawa) is a Japanese character song credit tied to The Idolmaster franchise and performed by Akiko Hasegawa, whose real name is 長谷川明子. Hasegawa was born on 14 April in Niigata Prefecture, Japan, and is associated with J-pop. Through The Idolmaster, Miki Hoshii appears in character songs, ensemble performances, and other idol-focused releases built around the series' music-driven concept. Rather than standing as a separate solo project, the credit functions as part of a character-driven music universe that blends role performance, franchise identity, and long-running visibility across anime, game, and music releases. A 2026 interview about The Idolmaster Million Live! Theater Days revisited Miki's appeal, highlighting how her natural, unforced personality keeps her a figure younger idols continue to admire. For listeners searching for anime songs, seiyuu performances, and idol pop connected to one of Japan's most recognizable multimedia franchises, Miki Hoshii remains a clear reference point.