She knew about his familiars. If this matter reached the emperor, his interest would soar to a new level.
It might create a new problem. On the other hand, he didn't seem to be able to hide this information.
The only way to ensure the secrecy of his familiars was through his Soul Contract.
But that meant revealing almost everything to her. That wasn't what he had in mind in keeping this secret.
Besides, he didn't expect to hide this secret for long. Even Gratzel Continent had known about his secret.
Still, his target was the Death Society. If he could receive the emperor's support, he might have an easier time defeating the Death Society.
The price was the hardest one. He might be able to pay it with the summoning technique, but he couldn't feel assured.
On the other hand, if he kept her close, he could probe her from time to time to figure out what the emperor had in mind.
