What happens when you summon Emiya Shirou in Chaldea

Arrival Of A Idol

Ritsuka was walking down the hallway, pumped for his usual summoning sessions. "All right, let's see what I'll summon today..." he thought as he was happily carrying his saint quartz. Soon, he arrived at the summoning room and he placed the saint quartz onto the summoning alter. "Come on summoning system, give me something good..."

Soon, Ritsuka then placed the saint quartz onto the summoning alter. As he did, the alter lit up and in an instant, multiple blue orbs appeared in the air and connected with each other. They then turned into a right of blue sparks and swirled around with each other, forming a ring that then split into three and continued to swirl around until it turned into a pillar of light.

As the light faded, it revealed a gold card showing a hooded person with glowing eyes. Soon, the card disappeared, and in its place was a person who looked like Mysterious Heroine X Alter but was wearing different clothes. Not only that, but there were also objects that look like speakers floating around her and she was carrying a guitar.

"Class, Foreig-...Saber. Or rather, I'm an idol, so...currently for sale for the entire universe, with the altereactor fully open and the idolium at full throttle. I won't mind if you feel like calling me Ecchan."

For a moment, Ritsuka didn't say anything as he was trying to process the information and the person in front of him.

"Ecchan...she looks like Mysterious Heroine X Alter, but with major changes. I wonder if she is related to her..."

"Is there something wrong master?" Ecchan asked, snapping Ritsuka out of his thoughts.

"Hm? Ah, no. It's just that...well, you look a lot like someone..." Ritsuka replied.

Ecchan was silent for a moment before continuing the conversation. "You mean there are other people here with the same face as me?"

"Well...yeah."

"Are they all idols?"

Ritsuka shook his head. "No. All of the people with the same faces as you are not idols. Although we have servants who are trying to be idols."

"I see...no matter, I will show those other idols who the number one idol is," she said as she played some of the strings on her guitar.

Ritsuka chucked at Ecchan's behavior. "I-I see...anyways, welcome to Chaldea Ecchan."

"Chaldea? Is that where we are right now? It sounds like the perfect place for a stage."

"Yeah. And sadly, there isn't a stage here," Ritsuka replied. "Although Da Vinci would be able to create one within in instant..."

"Master," a new voice said, which Mysterious Idol X Alter immediately recognized.

"That voice...it can't be!" she thought in shock.

Both Ritsuka and Mysterious Idol X Alter heard the voice and turned around to see Mysterious Heroine X Alter, who was standing at the entrance of the summoning room. At that moment, both Mysterious Heroine X Alter and Mysterious Idol X Alter were shocked seeing each other in the flesh.

And they had one thought in mind.

"T-That's me?!"

For a moment, both Mysterious Heroine X Alter and her counterpart looked at each other with shocked eyes while pointing at each other. "Who are you?" Mysterious Idol X Alter asked.

"Me? My name is Mysterious Heroine X Alter. Who are you, imposter?" she asked as she drew out her sword.

"Me? My name is...Mysterious Idol X Alter," Mysterious Idol X Alter replied back.