Don't you want your revenge?

In the city of Balder—Drui's hideout,

Rrrnnng!

Drui approaches his smartphone, his steps audible on the bamboo flooring. The words 'Unknown Caller' appears on the screen in red letters as the phone rang from an unknown number.

"Hello?" Drui says into the phone. He has no idea who he is speaking with or what they want, but the fact that he is on a call with them indicates that something is off.

It sounds like a male but a speech-altering equipment is being used to conceal the identity of its user when the voice over the phone said, |Mr. Drui. I'm delighted I was able to reach you.|

"Who are you, exactly?" In an effort to hide the fact that something was strange about this call, Drui asks through clenched teeth, his gaze narrowing.