The Samurai's Dead Wife (Ang Espada ni Lurica)

“When her mother died, Lurica Corona started hearing voices before waking up. All her life she tried to find out what it is or what’s it telling. She didn’t know that this was no message from her mother, but a battle cry for revenge, coming from a ghost longing for vengeance on the disgraceful death of his samurai husband. On the meantime, a dark, powerful mafia is starting to make their move, which puts her friends, family, and love ones on the line.
Who is this mysterious apparition? Why is her grudge centred on the mafia? And why did she choose Lurica to wield her mission?
Will Lurica take her dark offer, or let this dark organization run lose?