AIKa ZERO (2009)
AIKa ZERO is a 2009 Japanese-language action & adventure series. It stars Ami Koshimizu, Miyuki Sawashiro and Misato Fukuen.
In the future, in a world mostly submerged under water, the 19-year-old Sumeragi Aika goes to college while training as an agent by assisting in Aida Gozo's salvaging business.