Christ Sea Count

Rufus Edmund, the youngest occult genius in the empire, was personally sent to prison by his fiancée at the celebration banquet for being awarded the title of Earl. The stigma of "treason" drove him to hell and was exiled to the sea purgatory "Happiness Castle" - there is no happiness here, only man-eating sea beasts, crazy criminals, and wolves in sheep's clothing. In despair, the soul from another world merges with him and awakens [the count's secret treasure]: every time he tastes injustice in the world, he is one step closer to changing his destiny against heaven! The giant monster in the deep sea, the strange secret technique, the truth of betrayal... The only ones Rufus can trust are the nuns with forbidden powers, the notorious Cursed Knight, and the mysterious killer who always says "I only know how to kill people." This is a counterattack by a count who returns from hell and declares war on all the injustices in this world. [Adventure] + [Strategy, Priest Assassin] + [Fantasy Light Novel] + [Inspired by the original work but significantly modified, not the same person]