Koguma Publishing Co., Ltd.

Pad. 29 Stand C/15

1-43-5 Sekiguchi, Bunkyo-ku
112-8666 Tokyo , GIAPPONE

• Tel: +81 3 6228 1877
• Fax: +81 3 32044388
• Web: https://kogumasha.co.jp/
• Email: henshu@kogumasha.co.jp