Even amongst the
elite troops of SOLDIER, Sephiroth is known to be the best. His past
is locked away in a confidential file held by Shinra, Inc. His giant sword,
which only he can handle, has extremely destructive power.
Notions of Sephiroth's
apparent death are put into question when Cloud
and his company AVALANCHE are detained in Shinra's headquarters. On the
eve before a public execution, their cell doors are opened. A trail of
blood leads the group to discover that President Shinra has been impaled
by a sword confirmed to belong to Sephiroth. Cloud and his friends decide
to pursue him.
revealed later in the Temple of the Ancients, is to drain the planet of
its energy with the aid of the black materia and its cataclysmic power
referred to as "Meteor." Aerith Gainsborough, the last Cetra, attempts
to stop him with the white materia and its power, Holy. Aerith succeeds
in summoning Holy, but Jenova, while in the appearance of Sephiroth, kills
her before it can be activated. The white materia remains active, but unused.
Later, Cloud procures the black materia, but is manipulated against his
will into surrendering it to Sephiroth, who then summons Meteor and barricades
himself inside Northern Crater, waiting for its arrival.
In the story's climax,
the Northern Cave barrier is penetrated by Shinra's mako cannon, allowing
Cloud and his party to descend into the crater for a final confrontation.
Sephiroth manifests himself as "Bizzaro Sephiroth" and attacks. Upon being
weakened, he transforms again into "Safer Sephiroth", a bizarre angelic
figure. After being defeated again, Sephiroth's spirit makes a final mental
assault upon Cloud within the Lifestream. However, Cloud has already rediscovered
himself and Sephiroth is unable to attack. Cloud easily dispatches Sephiroth
and leaves the Lifestream.