Asmodian's Contract feels more vibrant and light-hearted at time, but this one is mostly always tense and serious.
In Asmodian's Contract, at least the original FL was treated well. She was never beaten, manipulated, or caged up. And later on, the devil is all powerful and has lived a long life. The opponent is only the empress.
In this one, she's only in her 4th lives, up against the emperor. Her allies were as helpless. They are just kids...

this is nowhere near asmodians contract but meh readable