Because a takedown notice was sent to MangaDex from the owners of this series, fan translations of One Punch Man are currently unavailable to be uploaded. The series can be read in its entirety at the official Shonen Jump website, with the first and latest three chapters available at any time and the rest accessible with a Shonen Jump membership (which costs about $2 a month and can be accessed via a VPN if you are outside the US).
