I'm so done with Yeonju. At this point it's not about convincing her but realizing she isn't right in the head to begin with. I know she's been nice to Yuha and Hari in the past, but I don't think she's really being much of a friend to them anymore. At this point I don't feel like she's worth their effort other than to bring peace to their own lives.
As for Hari, props to her for taking charge, I just hope though that she's thought things through. I do get her wanting to get money back for Yuha and that it would probably be easier to punish him financially rather than through the courts, however, I still wonder if it may have been better to go through the police. Even if they can't act on it immediately, at least there would be a record of the report so if he tries something again there would be an established pattern.