Hunter x Hunter (2011) - Ging's Friends x And x True Friends

Seizoen: 2 - Aflevering: 17 / 77 - Eerst uitgezonden: 14 april 2013 - Episode ID: 740782

After defeating Genthru and collecting 99 restricted cards, Gon and his friends participate in the final event, a quiz tournament open to all players. After winning, Gon receives Ruler's Invitation. Who is the person that sent the invitation?