When Sirzechs returned to his room, his face was full of exhaustion.
However, the matter had not ended there.
"Oh my, you've really worked hard, little Sersy."
A cute and mischievous girl's voice rang out, making Sirzechs sigh. He raised his head and looked at the figure sitting in his chair—she was a girl with black twin tails, dressed in a gorgeous outfit that looked as if it belonged to a Magical Girl. At that moment, she was lying on the desk with a grin, staring at Sirzechs.
If it had been anyone else, daring to sit in the Demon King's seat would have been an unforgivable crime. However, neither Sirzechs nor the maid Grayfia beside him reacted in the slightest.
The reason was simple. The girl before them was also one of the Demon Kings.
That's right. There were actually four Demon Kings ruling the Demon Realm, all successors who had inherited the names of the First Generation Demon Kings. Just as Sirzechs had inherited the name Lucifer, the girl before him had also inherited a Demon King's title.
Serafall Leviathan—that was the girl's name.
"Serafall, how are things on your end?"
"For now? The Celestial Plane and the Fallen Angels seem to have noticed something, but since it happened within the Demon Realm's territory, they don't know the details."
"But speaking of which, this situation is really giving us a headache..."
At the same time, another handsome man with a seductive appearance and a very frivolous air stepped out of the shadows and dropped into a chair.
"Ever since the Three Great Factions War ended in a truce, the Demon Realm has never suffered losses like this."
Staring at Sirzechs, the man spread his hands helplessly and let out an exaggerated sigh. He was also one of the