The phone isn't unlocked. What you are seeing in the photo you posted is a hint about the Apple ID to which the phone is locked. If you don't use iCloud.com for your email address and never have, and if the phone is secondhand, then the address is that of a previous owner. An AppleID is almost always an email address and in this case it is dsomething@icloud.com and it is asking for the password to that user's account too. If you don't know that owner and you can't backtrack to that person then you are out of luck with that phone. It is useless, sorry. 'Activation Lock for iPhone, iPad, and iPod touch' is a security feature that's designed to prevent anyone else from using an iPhone, iPad, or iPod touch, if it's ever lost or stolen. To learn more click here --> http://support.apple.com/HT201365
For an individual to remove an activation lock absolutely requires the information for the account that applied the lock. Click on this link to learn 'How to remove Activation Lock' --> https://support.apple.com/HT201441