I know poor Rokudou hates his power, because he's a good person. But everyone he's met because of it has turned out better for it. I love how she relied so much on seeing the future that she now can no longer operate like usual, too, it's a great touch.
The bad future Chiyo saw through Ranna is only going to push her to want her power back so that she can save Rokudou from it. This will definitely be an interesting arc.