Play any track in Free Dance with Rise or Kanami as the main dancer.
Fill up the Fever meter with 3+ Fever scratches and there will be a chance that your Bond partner will be Rise or Kanami.
Thing is that the initial batch of Free Dance tracks doesn't have any with Rise or Kanami.
The way I unlocked them was to play the track "specialist" first and then play the track it unlocks "Pursuing My True Self (Shinichi Osawa Remix)".
This will unlock "Your Affection (Daisuke Asakura Remix)" which stars Kanami.
Playing that will then unlock "NOW YOU KNOW (Yuu Miyake Remix)" which stars Rise.
Good luck!