It's been five days since Saitama became a professional hero and he has yet to do anything heroic. When Genos informs him that C-class heroes who don't fight bad guys are dropped from the hero registry after a week of inaction...
It's Speed-o'-Sound Sonic.
.بل سرعة الصوت سونيك
Speed-o’-Sound Sonic!
C’est « Sonic le Foudroyant » !
Mi chiamo Sonic il Supersonico.