You sacrificed daughter of the last god

Charles has locked away his powers and taken work as a janitor at a magic academy, keeping his daughter Selena close while concealing his true nature. Her life is threatened by a curse linked to Azathoth, but danger also comes from the academy’s corrupt dean, who sees Selena as an offering to the Outer Gods. Charles’s devotion is tested as protection becomes a desperate struggle. When the dean’s scheme unleashes an invasion, Charles must abandon his harmless facade and draw on the strength he has concealed. The cost is devastating: he kills Selena after she becomes possessed, then gives up his godhood to bring her back. Her return offers no simple relief, as an abyssal glow appears in her eyes, leaving Charles to confront an unsettling new uncertainty.