Paradise Group Arc

The Paradise Group Arc is the 3rd arc of the series, and the 3rd and final arc of the Introduction Saga.

Story Impact

 * Speed-o'-Sound Sonic is introduced and declares himself Saitama's rival.
 * After being defeated by Saitama and Sonic and nearly being killed by members of the Organization, Hammerhead decides to get a job.
 * The Hero Association is introduced.