Try to restrain her.

I don't think I can escape her, Kazuma thought. And I don't know what's going on, but she is not acting like herself. If I can hold her down, I might be able to calm her down, or at least get her to to me what is going on.

Kazuma readied himself. He couldn't get up too fast, because he might pass out and end up in a worse position. He waited for the right moment, when Satsuki was looking away for a brief moment. She had just taken off her shirt and she started to remove her skirt. She looked down at her skirt to unzip it. In that moment, Kazuma took the opportunity to act.

Kazuma leaped towards her. Satsuki quickly looked up to see him.