Nautilis.

A young scientist, Keean Morechester, pushes through the tragedies of the Bendrakon Scientific Research Center. Unfamiliar with death, he must make choices to save or pursue those he called friends and enemies. Virus and plague flutter the halls as he is forced to endure this deep sea hell. A man of wit and leverage, Keean arms himself with an operator suit codename :Nautilis. With the armament, he just may escape the horrors that lie beneath the above.