Riko is a presumably young Hozen who features in the horde-side jade-forest questline. He is a relative of the chief of the Hozen tribe befriended by the horde expedition, sent with the horde scouting expedition. During this, he frees shademaster Kiryn from various Jinyu traps, due to his attraction to her. He recounts some of these events to the player later. Prior to the Hozen-Jinyu battle, he is placed in charge of supplies.
Riko only has one name, as opposed to the two of most hozen. This seems to be because he has not passed some variety of rite of passage. His involvement with the horde's expedition and supplies may have been intended as this rite by the chief.