[quote=deadpixel101]
So like, you are just killing of someones character without their consent?
[/quote]

No, the main idea is that James used this capsule for another reason. It has a timer. He knows exactly when it goes off. If necessary, he can apply the solution, because he is aware of when it happens.
Mostly, I'm using it as a mechanic to both show off how ruthless James is, and to force Hotarubi into the lesson, as James would. However, would the worst come to the worst, James would be forced to save Hotarubi due to the restrictions placed upon him by Third.