My Half-Sister Went Mad After Giving Birth to Fake Heirs

After her half-sister Cirra pushes her into a volcano, Lyris wakes on the day Cirra buys a potion to seduce Poseidon. This time, Lyris lets her enter the Forbidden Realm alone—where monsters, not gods, await. But fate twists: Lyris is dragged into the depths herself and spends a night with a mysterious man.

Both sisters emerge pregnant. Cirra claims Poseidon’s heir, but her body decays while Lyris glows. Deep below, something ancient begins to stir.