The number of characters and types of characters that can be set in the KADOKAWA-ID password are as follows.
[Characters]
・8 characters or more, 64 characters or less
[Character types]
・half-width uppercase letters
・half-width lowercase letters
・half-width numbers
・half-width symbols( @ # $ % ^ & * - _ + = [ ] { } | \ : ' , ? / ` ~ " ( ) ; ! . )