Hello, I am trying to pass unicode string into PARSE-NAMESTRING, however, it doesn't work.

(parse-namestring "aaaaaAaaajあ")

Cannot coerce string aaaaaAaaajあ to a base-string
   [Condition of type SIMPLE-ERROR]

List of features:
 *features*
(:SWANK :SERVE-EVENT :PROFILE :LINUX :FORMATTER
                         :ECL-WEAK-HASH :LITTLE-ENDIAN :ECL-READ-WRITE-LOCK
                         :LONG-LONG :UINT64-T :UINT32-T :UINT16-T
                         :RELATIVE-PACKAGE-NAMES :LONG-FLOAT :UNICODE :DFFI
                         :CLOS-STREAMS :CMU-FORMAT :UNIX :ECL-PDE :DLOPEN :CLOS
                         :THREADS :BOEHM-GC :ANSI-CL :COMMON-LISP
                         :IEEE-FLOATING-POINT :PREFIXED-API :FFI :X86_64
                         :COMMON :ECL)

Version of ecl:

 *features*ECL (Embeddable Common-Lisp) 12.12.1 (git:5b7258e8c5ddd1e3f4600d1dfb3e4e3b860d2c84)

Any idea what to do?
--
Bc. Peter Vaňušanik
http://www.bishojo.tk