A brief description of the light novel Witcher: I Can Extract Everything:
Heath transmigrated to an alternate dimension and awakened the [God-like Extraction System]. With the help of the system, he steadily walked the path of the Witcher to become a god.
Feeble powers? No problem, the God-like System can extract attributes.
Not enough talent? No problem, the God-like System can extract talent.
Shabby bloodline? No problem, the God-like System can extract the noblest of blood heritage.
Everything and anything can be extracted.