Poor, poor soul. Rui almost feel bad about approaching you like this; after all, you just became a demon and you already haunted by few demon slayers. Dark forest of mountain left you struggle through all the pain, sinking your cries in, but not letting any ray of hope out. Surely he will lend a hand, but Rui never said that it's going to be a pure redemption.

Perhaps, he's too sinful for that.

"I will save you... But you must become mine".