System Lover: Taming the Demon Lord

Modern girl Lily accidentally travels into a novel and binds a villain strategy system, tasked with conquering the terrifying cold-blooded demon lord Kael with zero initial favorability. She melts his icy heart with funny behaviors and sincere company, growing deep love with him. The pair uncovers a dark conspiracy that the system intends to force Lily to kill the demon lord. They rebel against the controlling world script, break dimensional rules. Lily returns home with amnesia, while Kael crosses worlds to chase their fated love again.