Talk:The Lunacy of Duke Venomania (manga)/@comment-5383053-20121222013539/@comment-350940-20130114092315

The narration of the fourth chapter does say that the older brother was the one who killed his family and then skewered himself on the sword to make a contract. But, yes, in the prologue there isn't a face on his right cheek, while the fourth chapter doesn't show the right side of the older brother's face clearly in that flashback.

Maybe Irina did something to change his face before he stabbed himself, to reassure him that she could "help" him? I don't think it's likely to be a continuinity error in the writing/drawing, not in such a short timespan, but I don't know what's happening behind the scenes.