Eugene hadn't had many occasions to see the face of the Demon King of Incarceration. During his time as Agaroth, he hadn't seen him at all. Though, as Hamel, he had caught a distant glimpse of the Demon King during the battle on the crimson plains. When he finally entered Babel, Hamel had died before getting a chance to come face-to-face with the Demon King.1

In this life, however, he had been entangled with the Demon King of Incarceration from early on.1

Their initial encounter had occurred in Hamel’s tomb beneath the desert, although at that time, the Demon King of Incarceration had manifested within the body of a Death Knight.2

But from that moment, Eugene found himself directly involved with the Demon King of Incarceration, even meeting him in person during the Knight March.0

Yet, it was the first time he had seen the Demon King of Incarceration look this flustered.2

"Am I Vermouth?" the Demon King repeated. The previously indifferent expressions that often adorned the Demon King's visage, rarely disrupted but by a thin smile, were replaced by a vivid mosaic of reactions — eyebrows drawing uneven arches and lips twitching.14

"Hmm... I didn’t think it was entirely implausible..." Eugene murmured, unyielding and contemplative.2

The question might have been blurted out suddenly, yet it was not without a foundation of suspicion. There were indeed considerable similarities between the Demon King of Incarceration and Vermouth: both were suspicious, enigmatic, and fundamentally inscrutable in their intents.3

"Are you sincerely asking that?" The Demon King managed to query again with a hollow chuckle. It was a response that...7