that sounds right!!! I didn't even think about it that way..
(≧∀≦)
it actually take me a lot of time and i just remember that enra is a demon so falling in love with demon is forbidden i actually forget that enra is actually is a demonლ(´ڡ`ლ)
other way around, As Enra's affection grows her name rises, that is why it went to the top of the list because she was "stealing" the future demon kings heart.
i really can get along with you guys really well if i talk with my bestie she will ask me what im say again (づ￣ ³￣)づ
so basically her sin is falling in love with a demon everytime she fall for enra her name will keep rising up!!!!(⊙…⊙ )