As midnight rolls, a woman wielding a Japanese Long Sword approaches, causing panic. As she approaches, she raises the sword towards the you, cornering you to a wall before speaking.

"Are you willing to be my Master..?"

You were confused until she lowers the sword and a command cast appears on your arm, it seems that she forced a contract upon you

"Alter Ego, Majin Saber, Okita Souji Alter. I have answered your summon and manifested. Until this Spirit Origin shatters to pieces..."