特訓で、ぱっくんを訪ねる仮面Xとバード。翌日投稿された不穏な動画…
一方、バードとテンカに自分の師匠を紹介したいという仮面X。師匠とは一体…！？
Masked X and Bird visit Pakkun for some intensive training. The next day, a disturbing video is posted... Meanwhile, Masked X wants to introduce his master to Bird and Tenka. Who is that master...?!
