Seduce the Underworld King or Die

Noble princess Gloria is pulled into the Underworld with her guests and bound by a system forcing her to seduce Hades to survive five deadly trials—only to discover she is a fragment of the goddess Grace, whom Hades loved a century ago, and the trials were granted by Zeus to bring Grace back. Yet Gloria rejects eternal godhood and Hades' love, choosing to return to the mortal world.