Izumi Maki is a Japanese voice actor known for her work in anime original video animations and video games, particularly those with adult themes. She is a stage name used by the voice actor Natsumi Yanase, who was born in Tokyo, Japan. Her career includes voice acting for a wide range of characters across different media, with a significant body of work in the 2000s.

Yanase, also known by her real name Hiromi Yanase, pursued voice acting training at Seinzoku, completing both the Sunday course (11th term) and the main course (13th term). Throughout her career, she was affiliated with several talent agencies, including Aoni Production and 81 Produce, before becoming a freelancer in 2005. The alias Izumi Maki is most frequently associated with her roles in adult game adaptations and OVA series.

Her portfolio includes a variety of roles in OVA series, many of which are based on visual novels. The roles provided in the query are confirmed by the Anime News Database, which lists her under the name Izumi Maki. These credits include the character Nogiku Nago in 15 Bishōjo Hyōryūki OVA, Anzu Shirakawa in Anejiru The Animation - Shirakawa Sanshimai ni Omakase, and Salsa in Angel Core. She also voiced Yuuki Amou in Hooligan and Natsuki Kurosaki in Oh! My Sex Goddess. In addition to these, she has multiple roles within the Jiburiru franchise, voicing Meimi Otonashi and her demonic alter-ego, Misty Mei, across Jiburiru - The Devil Angel, Jiburiru: Second Coming, and Makai Tenshi Jibril 3.

Beyond her work under the Izumi Maki alias for these OVA productions, the voice actor has an extensive career in video games under her other names, such as Natsumi Yanase. This includes roles in major visual novel franchises like Little Busters! as Komari Kamikita and The Fruit of Grisaia as Chizuru Tachibana, as well as characters in role-playing games like the Atelier Iris series.