Daemonium GN Vol 1
Seisu suffers from nightmares of the deadly car accident that killed his parents, in addition to being ostracized and bullied for his tragic past and unsightly scar across his face. In an attempt to cheer him up, his sister Alys gives him a weekend trip to a secluded hotel for his birthday! But it will prove to be the source of disturbing visions and incidents that relentlessly damage Seisu's already unstable mind. Will Seisu be able to maintain his sanity?
And, more importantly, who is the mysterious Yabriel, another guest in this hotel?