Summoned to another world, Ross Moreland craved excitement. He found a ritual sacrifice instead. A banished sun god refused the offering, thrusting him back to life with a star core—a mana reservoir overflowing with volatile power. Unable to discharge it through ordinary spells, Ross discovers a lethal alternative: channel everything into Sacrifice magic and gain remarkable abilities. To survive, he must join the organization that tried to kill him. Convincing a faltering cult that a star-core member serves their interests seems manageable. Navigating a sunless metropolis ruled by ruthless nobles, starving vampires, and those who despise weakness? That demands true mastery of his Sacrifice abilities. What to expect: - Isekai in the style of Ar'kendrithyst and Cultist of Cerebon - Skill development and magical system exploration - Slice-of-life moments, dungeon adventures, and cult expansion - Chapters between 2k-3k words - Daily posts for the first month, then Monday through Friday releases