This pattern is written in Japanese.
It is charted pattern.

Please download basic information on how to read Japanese charted patterns:
http://www.tezukuritown.com/nihonvogue_ravelry/doc/dl_Jap...

Tools: Japanese size “lace #0” crochet hook (1.75mm)

iOS app japanse crochet symblos
http://www.amimonojapan.com/app/crochet