Sekaibunka Publishing Inc.

Address:
4 - 2 - 29 Kudan-kita
Chiyoda-ku
102-8187 Tokyo
Japan

Contact:
Tsutomu Takema, editor-in-chief
Tel: +81.3.3262.5125
Fax: +81.3.3262.5330
E-mail: puzzle@sekaibunka.co.jp