
In the future, water has covered much of the Earth due to the effects of global warming, leaving the human race to live on neighboring floating cities. The orphaned Maia Mizuki, 15, just graduated from middle school and has already applied for employment in the elite Ocean Agency, part of the futuristic world government. Only the best, most intelligent, and physically fit students are eligible for admission.

as Maia Mizuki

as Gloria

as Yu Park

as Rena Honjo

as Shizuka Hayama

as Wilfred Kim

as Tsukasa Takagi

as Yukari Hanaoka

as Kosuke Yagi

as Chang

as May

as Shou Mizuki

as Tsutomu Hanaoka

as Milly

as Katsuya Mori

as Hikari Claire

as Kevin Wei

as Tanaka

as Manager

as Wong (voice)