The Two-Headed Wizard

From Author Wars - https://authorwars.com/books/the-two-headed-wizard-2537052.html

Overview:

Title: The Two-Headed Wizard
Author: 深沢美潮
Year: 2007
Type: Omnibuses
Series: デュアン・サーク / Adventures of Duan Surk

Variant Titles:

2007. The Two-Headed Wizard

Genres/Themes:

fantasy
RPG