[Everyone's Favorite] [Villainess] [Love Rival Showdowns] Ophelia has always thought the System's mission was very simple: all she had to do was win the heart of the human incarnation of the God of Light. She's a succubus, after all. This is what she does best.
With the System's help, she gives herself the identity of a devout, kind, cheerful, outgoing, and exceptionally talented young woman, the perfect girl in every way. But Ophelia discovers that none of this is enough to complete the mission, so she has no choice but to resort to a few less-than-respectable methods.
Unfortunately, even in the end, the affection meter is still just shy of full. Ophelia decides to strike first. It's not what she wanted, either. This is all the God of Light's fault. The gods are benevolent, so whatever she does will be forgiven.