Responses
I thought about that too :)
I was thinking her sin was falling in love with him and attempting to commit suicide. whoops#－.－)
I'm pretty sure it's falling in love with 1 or all of the demon brothers. (exept. mr. Disqualified)
Cause I'm very sure falling in love with a demon is a sin a great one in fact.
I'm pretty sure her sin is just loving him... It's kind of obvious... or there might be a plot twist. dun dun dun. This story is so cute though XD kyahh!