Sythe (IPA(key) /saɪð/) is a Wolf Keidran of the Border Forest Tribe who was Flora's Bodyguard and Fiancé in an arranged marriage to help unite the wolf and tiger tribes. However this marriage was canceled after Flora started a relationship with Trace. When he first meets Trace with Flora, he ambushes him and tries to kill him, only being stopped by Flora who says she'll kill Trace when the time comes for it. At one point, he attempted to guilt Flora into killing Trace by falsely claiming that Trace was responsible for the murder of Flora's parents and her enslavement. But right before entering Trace's tent, Flora had a change of heart, ruining Sythe's plans. Later, Sythe locates Trace and Flora at an inn and attempts to kill Trace and take Flora home, but is attacked by Maren and her friends while Trace and Flora escape unnoticed. After the battle, the friends, Keith, and Sythe all eat pizza together and he seems to form a friendship with the others. Later, while Trace, Flora, and Keith are traveling to a port town, Sythe meets with Flora and tries to convince her to go with him back home and continue with the marriage. Flora refuses and Sythe finally gives up and returns to Keidran territory empty-handed.
During the Keidran's assault on human territory, Sythe tries to help Maren, Karen, database error, and Raine escape but is caught by his leaders. Karen then claims that Sythe is her father, (although not true) and they seem to finally escape after Raine involuntarily uses a transportation spell. Sythe is then identified as a traitor for "eloping with a human". The leaders believed Karen's story was true and Zen is ordered to capture Sythe if possible and silence the others. After they begin travelling again, the group runs into Templars and claim that Sythe is their slave, but a Kiedran among them recognises him and so they then believe the group is harboring a spy and react aggressively.
Sythe's appearance has changed from a regular Keidran as seen in the first chapters to a more realistic wolf look in the later chapters. His name was the Keidran word for the scythe, but he changed it to the human word so they could pronounce it, the entire time oblivious to the fact that he spelled it wrong.