Pirated works do not constitute pirated works. Pirated works refer to the act of copying and redistributing copied works and publications by new producers without the consent or authorization of the copyright owner, which is a serious infringement of intellectual property rights.

Similarly, simply modifying a work without the consent or authorization of the copyright owner infringes on the author's right to modify and protect the integrity of the work, which is also an infringement of intellectual property rights.

You can contact the author and get his consent or authorization to modify or adapt.