The angel of death makes a deal with the Demon of sickness in hopes to wipe out people with heavy sins. But it gets out of hand, and the rats are infected.
(Yandere Michikatsu/Kokushibo x Reader x Yandere Yoriichi) Obsession. To drown without you and expect nothing less but the heart from which they seek. Like an intoxicating addiction of the hearts growing roots to the minds and then eventually entrapping the soul in the twisted branches.