"So what happened?"
"Took out some monster. Don't know what it was exactly, but it looked like a forest apparition."
A disembodied voice echoed in his mind, a telepathic message from his boss. Clear and strong, a pleasure to listen to.
"Caster's familiar... You already killed one?"
"Yeah," Ragnar replied.
"Next time, report any encounters immediately."
"Yeah," Ragnar repeated.
He was grateful that his boss wasn't overly sensitive. Her calm and understanding nature was a godsend.

Fate/Lost Einherjar, Prologue