Are these two sentences "sentence fragments"?

This all changes with the arrival of Genos, a 19-year-old cyborg, who wishes to be Saitama’s disciple after seeing what he is capable of.

And thus begins the story of One Punch Man, an action-comedy that follows an eccentric individual who longs to fight strong enemies that can hopefully give him the excitement he once felt and just maybe, he’ll become popular in the process.

Please can someone tell me if these two sentences are sentence fragments or not. I think they fully qualify as a sentence but I need a second opinion.