Fairy Leviathan

Fairy Leviathan, known in the Japanese version as "Youshou" Leviathan (「妖将」レヴィアタン 「Yōshō」Reviatan?, Yōshō literally meaning Siren General), or simply Leviathan, is a member of the Four Guardians of Neo Arcadia in the Mega Man Zero series. She was created from Mega Man X's DNA data after the Maverick Wars to clean the world's oceans. Leviathan's schematics are based off X's capabilites of underwater combat. Sometime later, she became a military general of Neo Arcadia, commanding the Deep Sea Squadron (Meikai Gundan, literally "Army of the Dark Oceans"), Neo Arcadia's navy force. In the Mega Man ZX series, she makes an appearance as Biometal Model L. She became a member of Spirit Force after protecting Ace from Spinal.