Swear to me"

If I do eventually write their story, this could be considered as a spoiler during their time at Duel Academy :3 I haven't drawn by babies together for a while now.

Kurenai is making Ryoko swear to her, if she looses her duel with Alexis (who is in the Society of Light here) that she must steal Kurenai's demonic powers before Satorios destroys them first. But Ryoko doesn't want to do it because of the possibility that Kurenai may die if she attempts to reclaim it.

Power theft between demon siblings is not a common thing and is dangerous to those who don't know how to do it right. But if the theft is successful the first time, there's an extremely high chance of death to the sibling who trys to steal it back.

Ryoko and Kurenai are mine :P so no stealing unless you want to be Kurenai's lunch