Sayu

They were heading to the basement when the castle kept on shaking. It was like there was a tenacious earthquake kept on coming in to stop them.

Apart from the constant shaking, the chilling sensation coming from the basement was beyond terrifying. It wasn't terrifying because it was powerful, not at all. In fact, none of them knows why they were scared, but the more floors they travel down, the colder it gets.

"We're almost there," Sayu said. "Now, we only need to go to the basement and then attack him."

"What if he shoots the poison cloud again?" Florencia asked. "We need to be very careful."

"I control this castle," Sayu said. "If he tries that trick again, I will isolate him inside the basement."

What the woman said made everyone look at each other. She just said that she controls the castle. It may be the reason why even though she's a woman, she had a high rank in their hierarchy.