"Okay, first of all, why calling her a familiar?" Hideaki asked Sakura confusedly. He'll deal with the rest later.
"Erm, well, because she is a magical familiar", Sakura responded, unsure how to explain it better. "I provide her with the magical energy she needs to exist, and in turn she protects me."
Richenda Smith, Homurahara Academy
Rider smiled at the rather-attractive blonde woman.
"Hello Richenda, nice to meet you", she said.
what a beautiful woman.
"Thank you rider." Richenda replied "so do you ride wooden horses or what?"
Rider blushed for a moment, before giving her a sultry smile.
"Well, normally I ride other things, but I'm sure you could persuade
me to give it a try...", she said with a smirk, watching closely to gauge the girl's reaction.
"Oh my, that's horrible." Richenda says, scared, but at the same time excited. "And what do you mean by servants? You obviously know more than you let on."
"W-w-w-what? Monster?" Hideaki gulped nervously, wondering how did that happened. It's is one thing about ghost lady, but a monster attacking town? Not good.
Sakura rolled her eyes momentarily at her servant's flirting, before addressing the two of them herself.
"Aren't you servants?" Sakura responded, obviously confused.
She could clearly sense the mana coming off them, and their outfits indicated they were not ordinary people. So, how could they not know what a servant was?
Sighing, she decided she had better explain things in more detail.
"As I said, servants are magical familiars bound to a human master. Rider was summoned by me under my Grandfather's orders to fight in the Holy Grail War, and she chose to remain after the war ended and protect me for as long as she is able."