
Quick answer — Kei Mizusawa voices Asako Kusakabe in The Eden of Grisaia, Airi Hasekura in In Search of the Lost Future, Celia Cumani Aintree in Walkure Romanze and 7 more characters.
Kei Mizusawa voices Asako Kusakabe (The Eden of Grisaia), Airi Hasekura (In Search of the Lost Future), Celia Cumani Aintree (Walkure Romanze), Kei Sakurai (Dies irae), Machi Yatsuzaka (Mashiroiro Symphony), Takigawa Aoi (A Good Librarian Like a Good Shepherd), Shuuyu Koukin (Koihime†Musou), Margit Eberbach (Majikoi: Oh! Samurai Girls) and 2 more.
Asako Kusakabe is voiced in Japanese by Kei Mizusawa.