The Jan Tribe is a non-magical clan based in Iyoneu. It is also the faction that holds the most power in Iyonuan politics. All of its members have the prefix "Jan" in front of their surname. Its HQ, as well as the traditional seat of the family chiefs, can be found in the town of Januizen, Iyoneu. It's current leader is Motohiko Jan-el-Amin, the younger cousin and heir of Momoka Jan-el-Amin.
The Jan tribe, or the Tribe of Winter, can trace its lineage back to Adalwolf January, the illegitimate son of a Kapuluan prince.