A Song of Ice and Fire: Something's Not Wrong with My System

Western magic + multi-race + lord story + double time travel The system is obviously called Civilization Fire, but it relies on killing to collect souls. He is obviously a top physicist, but he traveled through time and became a half-blood prince of the human Kate Empire. He was obviously a prince, but he was sent to a barren borderland called Feilengcui. How can he grow up step by step in Feilengcui, surrounded by powerful enemies? The three major human empires and the continent of light of the seven major races will win a new king. He is also a top physicist, but he follows his ex-boyfriend through time. Obviously they traveled through time together, her ex-boyfriend was a prince, and she was just a girl who was sold by her father, a gambler. She also traveled through time together, but appeared in the dark world that is opposite to the light world. There are immortal souls here, and there are terrifying demons here. How can she break out of her cocoon step by step?