King of succubus

The wedding dowry.

He slowly approached the box while his eyes shone with unprecedented curiosity. But just before he reached it, the queen's voice resounded behind him.

"I prefer to warn you, this thing is impossible to open. In the past, I had tried all the methods to open it but it was without result." She commented.

But Alvine's interest was also still increased by hearing her words. "So in other words, you don't know what it contains, don't you?" He asked while taking the small box. 'Hm? It is heavy for its size. What can it contain? What can it contain? I can't see what it contains at all.' He said to himself.

The queen shrugged her shoulders accompanied by a head shake, answering Alvine. "Unfortunately, no. You may have already noticed, but this small box is made of the same material as the room door. Not only does it block my perception, but it is also very solid. It is black gold, the strongest matter; at least, to my knowledge."

"In this case, how did she land here?" He continued with his ques