Reborn Marriage to the Tiger Clan, Favored by the Beast King

When the apocalypse breaks out, zombies rampage and tsunamis drown the world. Betrayed by her jealous sister and family, Ava dies cruelly in her past life. Reborn, she reverses her fate and leaves the illusory safe underwater life to her greedy sister. Teaming up with the tiger shifter alpha, she prepares for the doomsday. Yet no one knows, the frozen ocean hides a deadlier doom.