Someone spotted a filming of Kamen Rider Wizard recently and by the gist of it, it seems that Beast needs to use an Engage Ring on Haruto.
As of this writing, we still have no idea how this scene will work out in the series or where does this scene will take place.
Source: DecaEnd of HJU
Filming in Tsukaba. The usual Ai Ai Mall location. At one point Beast has to use an Engage Ring on Haruto. Haruto falls down on the ground, Beast takes off Haruto's ring, gives it to Shunpei and does the Engage thing.
As of this writing, we still have no idea how this scene will work out in the series or where does this scene will take place.
Source: DecaEnd of HJU