Players are generally confused about obtaining the complete secret book in "Nioh 2". To deal with this problem, just follow the following steps:
The Secret Book is a prop that can be used to learn new skills, and is dropped by specific human bosses.
※The names of some secret books are unofficial Chinese names and will be revised later to match the official Chinese names.
※There is no secret book of swords [Flying Broken Sword] and the secret book of spinning stick [Dragon God Snake Fire].
