In their past life, sisters Raina and Evelyn hatched two beast eggs: a Fire Phoenix and a Frost Serpent. Evelyn stole the phoenix, but when a scorching global apocalypse hit, she was roasted alive, while blaming Raina and causing her death. Now, both sisters are reborn on the hatching day. Desperate to survive the upcoming extreme heat, Evelyn quickly claims the Frost Serpent for herself, thinking it will keep her cool. What she doesn't know is that to maintain his icy powers, the serpent requires a daily feast of fresh human blood.
