What is the meaning of the number on the Buso Renkin medallion? In Buso Renkin, the medallions each have a Roman numeral inscribed on them. Tokiko's is numbered XLIV (44), and Kazuki's is numbered LXX (70).



What do these numbers mean and why do these characters have these specific numbers?
The roman numeral represents the kakugane's serial number. There are only 100 Kakugane, from I (one) to C (one hundred). There are 29 known kakugane that are used (in Japan) in the series.

Kazuki's "LXX" kakugane is... special.