Anyone Who Loves Me Will Die

The three countries on the parallel earth are Xuanyuan Kingdom of Martial Arts (against Demon Race and Zerg Race), European Kingdom of Magic Knights (against Demon Race and Undead Race), and Mutated Maumei Alliance against extraterritorial invasion (against Machinery Race, Giant Race, and Elemental Race). The protagonist and heroine love and hate each other. In 2029, Earth monk Niu Chi accidentally fell into Proxima b in the parallel universe and became the only immortal cultivator on this spiritually resurrected planet. 90% Of this place is the ocean. The giants wield technological hammers, the mermaids sing water magic, and the cages on the sea floor suppress the wreckage of chaos that is larger than the mountains.