"Assassin Class Servant, ready. Are you my master?"

Ruby stared at the mysterious figure standing before her. She lied on the ground, the moon shining on the intruder, bringing her beautiful features to right. Black hair, cat ears on the top of her head, and the most golden eyes. The figure stared at her impassively.

"Well?"

Regaining her senses, Ruby clutched her chest. The pain from the attack she suffered earlier lingered. She was staying after school to clean the Archery club when she saw a clash between a woman in a red hood and a large scythe and a blond haired man with a long red staff and blue armor (and someone who looked suspiciously like Weiss Schnee, although Ruby couldn't tell). Ruby ran into the school to escape but her chest had been pierced. She found herself back at home, only to be attacked again.

"Master?" Ruby got up from the floor finally, "I don't get what's going on at all, who are you?"

"An accidental summon." The figure looked around. "A complication, but nothing that can't be fixed. You may refer to me as Assassin."

"Hey pretty ladies! I'm still standing outside!"

Ruby and Assassin turned their heads outside. The man who attacked Ruby was fidgeting impatiently.

"If you think you can ignore me forget it!" He said. "I felt bad 'cause you were in a bad place at the wrong time, kid, but with a Servant like her now I can fight without regret!"

Assassin payed careful attention. Her eyes scanned every inch of this intruder, to find any insight. Thankfully he was all to easy to read.

"A Lancer class." She said. "The design of the staff resembles that of Ruyi Jingu Bang from Chinese Mythology. Logically, you must be Sun Wukong."

Still not understanding what was going on, Ruby watched as the man's eyes twitched.

"Figured me out already?" Sun said. "Now I have to kill you."

"Eep!" Ruby went behind Assassin. "Please don't let him kill me!"

"I won't let that happen, Master." Assassin said. "Stay here, I'll fend him off."

With that, Assassin and Sun engaged in battle. Ruby felt a sharp pain on her hand. A strange set of red symbols appeared over her it.

"What could this mean?" Ruby asked out loud. She looked to the ground "Why was there a strange circle in Mom's shed?"

Her mother, Summer Rose, didn't teach Ruby much beyond basic reinforcement before she passed away. Ruby did not think much of what her mother did before she had her, but with the symbol on the ground that brought forth this Assassin character... just what did her mother used to do?