It didn't make sense. She had the choice to eat her financial losses (possibly going bankrupt) and start over, or in-debt herself to the Yakuza, which everyone knows is not something you can easily get out of, if ever.

I get that she didn't want to give up her goal of being her own boss and hostess-bar owner, but what she chose was to accept Yakuza assistance, making her bar essentially, but not legally, theirs and she knew it.

Moving cities and starting over would at least grant her self-control. She wouldn't owe the Yakuza anything.