I've made a rough translation of the license. As mentioned it's in Japanese. It's also kind of confusing. I'll send a pull request when I'm back at my desktop. (EDIT: Though of course, redistribution seems to break the condition at line #6).

  1 Orto SDK is Free Software.
  2 Copyright Kobayashi Yuu
  3
  4 Use and publication of applications produced by using Orto SDK
  5 are free for both commercial and non-commercial purposes.
  6 For other uses of Orto SDK, or for redistribution of the Orto SDK,
  7 please contact support@orto.jp beforehand.
  8
  9 Due to lack of contract with Sun Microsystems,
 10 Orto is Java-style but it is not Java. Orto is an independent language.
 11 Java is a registered trademark of Sun Microsystems
 12
 13 The author is not responsible for any damages which may occur through use of Orto SDK
 14 Furthermore, reverse engineering of Ordo SDK is prohibited.

No, it's Japanese. I've never heard of Orto before but I can read the licence off your Github repo.

https://github.com/robterrell/orto/blob/master/docs/license....