In the Hot Weather of the Apocalypse, My Sister Steals My Polar Bear Orc Husband

My parents favored my sister and chose the richest African lion orc for her, while I could only marry a poor polar bear orc. Later, when the high temperature hit in the apocalypse and the power system collapsed, the African lion orcs were the first to die from the heat, even if they had money to buy ice. But the polar bear people took me directly to the North Pole to escape the heat, eating iced watermelon and drinking iced Coke. My sister was so sunburned that her skin was disfigured, so I took her to the Arctic to escape the summer heat. When she saw that I was loved by polar bear people, she couldn't accept that I was living a better life than her, and she was so jealous that she killed me. In her new life, her sister took the lead in choosing the polar bear. She thought she could enjoy the coldness this time when the heat of the apocalypse came. But she didn't know that the glaciers were melting under the high temperature, and the North Pole was about to be flooded.