"Hello. I am Caster Artoria" With a beaming smile and a bright, cheerful voice, the servant being their introduction, even while Gudako was still picking her jaw up off the floor. "To be honest, I don't understand what it means to be a Servant, but if you say I will be of help with such a thing like magecraft, then by all means, please make use of me."
Finally recovered from her shock, the master of Chaldea was about to address the latest arrival when the door to the summoning chamber opened, and a high pitched squeal of joy filled the air. Before anyone could react, a blue and black blur latched on to Artoria, burying the young woman's face deep within the pillowy valley of a pair of breasts.
"Master, you shouldn't have!" exclaimed the figure happily while it played with the Servant's hair "Oh she's precious, not as much as lily of course. And she's a magic user on top of that!"
Fighting against the force of the grip trying to keep her head buried, Artoria managed to move just enough to look up and discover who the mysterious person was. She was quite shocked to find that it was.
"Dammit, Morgan!" "S-Sister!?" The witch queen of Britain smiled down at her younger sister, continuing to play with her hair as she does. "When I heard Master was going to summon you, I just had to be here when you arrived to greet you properly."
"You damn siscon!" Gudako sighed tiredly and took out a small device from her pocket. "Hold on for a few minutes, Castoria, help will be here soon."
"C-Castoria?!" First, her summoning, followed by her sister acting strangely, now given an odd name. Artoria could honestly say she'd never had a stranger day.
"Huh? Oh right" Snapping her fingers at the realisation of her blunder, Gudako started to explain. "Well, there are so many version of...well you, that we had to come up with nicknames to tell you all apart. With you being the caster class, I figured Castoria would be the best one to use"
"I...guess that kind of makes sense" It didn't, but Artoria wasn't really in possession to correctly argue the name, coinciding her sister's 'petting' was getting more...invasive. "Wait? How many versions of me are there?"
Gudako put one finger on her chin as she looked up in thought. "Well there is Saber Artoria, Saber Alter, Saber Lily, MHX, MHX Alter, MHXX, Lancer Alter" With each one listed, Morgan gave a different hum of joy, some getting higher pitches than others. "Oh, and Morgan's favourite."
The door opened once more and in stepped a tall, armoured figure.
"Lancer Artoria"
Artoria watched as her mature self's gaze swept over the room before locking eyes with her. The two versions stared at one another for a brief instance until the older one raised a single eyebrow and turned to look at Gudako. A silent question passed between Master and Servant, only for the young woman to sigh and wave a hand toward's Morgan.
"You know how she gets with you Artorias. And with this one being a Caster?" A face the seemed stern and unyielding gave way to a soft smile and an understanding chuckle.
With a few quick strides, Lancer crossed the room and gently separated the two Casters from one another. Taking hold of Morgan's hand, Lancer started walking back towards the door. "Come along, sister. We have a lunch date with Mordred and Fran to attend before we start today's farming session."
Morgan looked torn between rushing back to the younger Artoria and letting herself be carried away by the older one. "But...but?"
"You can speak more with her later. After Master has gotten her settled in and she had time to adjust to things" Turning her gaze once more to her younger self. "I welcome and look forward to speaking with you. I know this is all very confusing, but do not worry. I shall keep our dear sister in check, so you will have nothing to fear."
"T-thank you" Caster wasn't sure what it was. But looking at her older self seemed to fill her with a sense of awe and great sadness at the same time.
With a final nod, Lancer left with her sister, leaving Gudako and Caster alone. "Well, that isn't how these introductions usually go. But oh well, better to get that out of the way early" Pushing herself off the wall she was leaning against, Gudako held a hand out towards Caster and smiled. "Ready for the tour? Trust me. It won't be as intense as that."
Chuckling at the joke, Caster reached out and took the offered hand with a smile. "I'm in your care, Master."