Template:Update Template:PersonRukiryo is an NPC which is located in the Den. By giving this NPC a lightbulb, as well as the respective items for the other members of the Den, a Rukiryaxe will be given to players or an End Times Axe on Halloween 2016. In the Den, he is seen to the right of the table.
Rukiryo, as with all the other Den members, is mentioned in one of the Rukiryaxe Posters, saying "EATS LIGHT BULBS ALSO HAS A THING FOR DUCKS SECRETLY JEALOUS OF GUSMANAK AND HIS DUCKS" - giving the player a hint of the recipe for the Rukiryaxe. The can be found by going into Woods R Us, putting a sawmill box onto the shelf, and climbing onto the blueprint sign. You can then go onto the ladder where you will find the poster on the back of the Woods R Us sign. He is based on the real ROBLOX user with the same name. The Rukiryaxe is also based on this player's name.
In order to find the character in the Den, the player must travel to the Taiga Biome, (making sure to bring Dynamite in order to pass the boulders blocking the entrance) and locate the Hatch which grants the player entrance to the Den. Because the Hatch is covered with snow, the player must find the red eagle. The Den is located somewhat directly under that.