![](https://truefork.org/wp/wp-content/uploads/2019/03/bscap0383-1024x576.jpg)
The Youjo Senki universe has at least 2 numeral systems, one “Roman” system where 10 is represented by “X” (though their “X” is different from the X in their alphabet) which is mainly used on clocks (and in the episode numbers) and an “Arabic” system that includes a 0 that is most obvious on some of the maps.
![](https://truefork.org/wp/wp-content/uploads/2019/03/167741984481_0-1024x854.jpg)
Interestingly, their “Roman” and “Arabic” numerals are identical aside from the 0 and 10. This doesn’t lead to confusion between, say, 2 and 11, because of the mandatory ligatures.
![](https://truefork.org/wp/wp-content/uploads/2019/03/bscap0686-1024x494.jpg)
There are some instances of mixing both systems, such as “X000” – which supposedly means 10.000. This looks like a really bad idea, because by allowing a mix of both systems, XI could refer to both 11 and 101…
![](https://truefork.org/wp/wp-content/uploads/2019/03/bscap0687-1024x576.jpg)
To add even more confusion, there is one clock with “main universe” Roman numerals:
![](https://truefork.org/wp/wp-content/uploads/2019/03/167741984481_1-1024x576.jpg)