
Quick answer — Keiko Nemoto voices Shu in Blue Dragon, Tetsuko Murata in Gintama.: Slip Arc, Shizune in The Last: Naruto the Movie and 1 more characters.
Keiko Nemoto voices Shu (Blue Dragon), Tetsuko Murata (Gintama.: Slip Arc), Shizune (The Last: Naruto the Movie), Forte (MegaMan NT Warrior).
Shu is voiced in Japanese by Keiko Nemoto.