Vincent the Great

The demons took his farmhouse, his wife, his peace. Now Vincent Burns lives to kill as many as he can. The excommunicated exorcist, along with Sister Beatrice and local sheriff Chloe, has found himself in the middle of a demonic plot to bring Hell itself to the United States, yet the biggest puzzle is the white-haired girl he found in a suitcase. Demons not only die upon biting her; flowers bloom from her wounds. Vincent and Beatrice must keep her safe until they know her purpose, while Chloe must keep her sanity against the demon horde.

(Source: Webtoon Entertainment)