In the loans screen I can see "You can't take another loan from Fujimoto until you finish his task". What kind of task is that? I don't remember signing up for any task and I can't find task details anywhere.

In the top left of the window, next to the menu, it should say "Details" and "Tasks", each with a small arrow next to them. If you click "Tasks", the arrow should start pointing down and you should see any tasks you have to do.

thanks