Encounter IV: Duo Concentration - S1.E5

Michinaga continues showing his hostility to Ace while they are called into the the next round of the Desire Grand Prix, which requires the five remaining contestants to pair up. While the pairs are decided through lottery, each team fights to eliminate the Jyamato.

However, because there are an odd number of remaining contestants, the Desire Grand Prix management sends out one of their own, the mysterious Kamen Rider PunkJack to pair up with the outlier. Who exactly is he and which pair will emerge victorious?