According to a lot of people, Agent Aika is the hottest anime serie. It is very funny, with underwears everywhere. It is about a beatiful woman, Aika Sumeragi, a savager from an alternative future, where Japan is under water (an terrible natural incident). She takes charge of rescuing elements lost by the flood and among these it is a weapon very powerful, that is able to destroy to the whole world, and it is her the one who has to try that weapon doesn't fall in the wrong hands. For this reason, she will face a entire army of gorgeous women whit very short skirts. This army belongs to Rudolph Hagen, who wants to clean the world. But he is not alone, Nina Hagen, his lover, always is next to him.
Aika Sumeragi has several very amusing friends that will help her (like Rion Aida and his father Gozo Aida and Gust).
She has a special suit (ultranite) that transforms her in a great war soldier, with some special skills. She is admire by Rion Aida, who is the daughter of the owner of the savager Company KK, and Rion is always following Aika's steps.
Although this is a short serie, you can find a lot of fun and in this anime serie that can be considerated as Ecchi .
You can be sure that in the anime Agent Aika you will get a lot of underwears, short skirts and great female bodies, and don't forget the great action.