Glenn

Gren is often seen as Irias older brother and a full fledged hunter. In episode 5 however it is hinted by Fujikuro that Gren might not be Irias brother but is possibly her oniisan a Japanese term used for both older brothers and close older male figures. He taught Iria much of what she knows about hunting and serves as a mentor for her apprenticeship. He wears a blue cloak and hair beads which are similar to Iria as well as an unusual pendant which is later found by Kei. Source: Wikipedia