Rider listened to the two of them talk, honestly not overly impressed with either, although Adjutor was worst. Caster seemed rather too eager to get into a needless fight, but Adjutor's attitude really was absurd. He'd appeared in the middle of their house, and was acting like they were the ones who owed him an explanation. And, whilst he had stated no desire to harm Sakura, his use of the statement "monstrous tendencies" both worried and irritated her. After all, she was a monster, as was Sakura herself, to a limited extent. If he was someone who hunted down "monsters" as a fundamental principle, he may well react badly to their true natures.
Still, despite his attitude, she felt it made sense to explain why they had left him behind. It was simple enough, and there was no need to continue the fight. Before she could, though, she heard a loud "thump" come from upstairs.
Sakura!
Are you OK, Sakura? Rider sent through their telepathic link, full of concern for her master, before turning to address the others.
"Well, I hope you're both happy. You've woken Sakura up!" she said, angrily. "And, she seems to have hurt herself."
"Adjutor, in future, if you want to come into someone's house, knock. If you make a mistake and enter accidentally, then either leave, or announce yourself and apologise. Don't go barging in, set yourself up in a magus' workshop and then act like you're entitled to an explanation when you get attacked by a jumpy magus. Caster relies heavily on the element of surprise, so he tends to shoot first and ask questions later, unlike me."
"Now, you two can continue to argue over who owes who what if you want, I'm going to make sure Sakura is OK", she finished, her anger still clear.
Waiting for Sakura's reply, Rider turned into spirit form and began to head upstairs.