My Library Is Full of Superpowers

You traveled through the world of Gaowu and became a librarian, and your life was very confusing. Until that day you accidentally woke up to the extraction panel. "Congratulations on extracting the fireball technique." "Congratulations on extracting the Palm Immortal Technique."... Any skills you find in the book can be extracted and turned into your own abilities. You feel a little emotional, thinking that the book has its own golden house, and the book has its own beauty like jade. The ancients sincerely do not deceive me. Therefore, for you to practice this thing, just lie down...