So, Rosalia will be working suddenly with new arrival D. Unaware of how dangerous Soul Abilities have become, she'll be creating incense butterflies with her virus. Since she's still a rookie ranked, the boost will only get things to stage two.

Stage two symptoms include - Dark bruises appearing where butterfly contacts, auditory and visual hallucinations, increased aggression, loss of sanity, and vomiting blood occasionally. Technically, this is part of its 'Dark Stage' where tumor colonies are forming rapidly inside the body. However, they will not take long to burst in the event (especially if contacted by multiple smoke insects).

So, any characters who want to be infected by accident, treatment will be administered following the conclusion of events by NPCs. Kishin eggs will not survive and... some innocent bystanders might not either. All a heads up and warning what's going on.