Octopus and Matenro

Satoru suddenly began to wonder how many suckers there were on the octopus' legs. Then Matenro appears and provokes Satoru, saying, "You don't even know about that?" An angry Satoru decides to investigate using an actual octopus, but Matenro steals all the octopuses in Tokyo to prevent Satoru from investigating. What will Satoru do when he is blocked in all directions?