Koka's twin lamb daughters, who turn the whole DLC into a game of Hide and Seek that pays out the Fleece of Youth.
Aza and Keru are the only bosses in Woolhaven you win by finding, not fighting. The two lamb sisters hide across the DLC and cast the Lamb as the "evil Bishop" hunting them, turning Koka's quest board into an extended game of Hide and Seek.
They are a package deal. According to the wiki, Aza and Keru are twin daughters of Koka and Chazaq, and every mission on Koka's Quest Board is about playing Hide and Seek with the pair.
Their game has a real reward. The wiki ties the sisters to the Fleece of Youth, the cosmetic fleece you earn for seeking them out across Woolhaven.
This guide covers who Aza and Keru are, how their Hide and Seek quests work, where they hide, and the Fleece of Youth their game unlocks.
Twin lamb sisters, the children of Koka and Chazaq in Woolhaven.
Hide and Seek, the whole of Koka's Quest Board.
The Fleece of Youth for finding them across the DLC.
Their mother Koka is a ghost, one of Yngya's fallen disciples.Aza and Keru are twin lamb sisters and some of the most innocent faces in 
Woolhaven. Per the wiki, Keru is the elder twin with dark spiky wool and a teal hat, while Aza is the younger, with gray wool and an orange sweater.
They are family to the disciples. According to the wiki, both sisters are the daughters of Koka and Chazaq, two of the lamb disciples who serve 
Yngya, which gives the cheerful twins a quietly tragic backdrop.
They exist to play. The wiki states Aza and Keru can be found playing together throughout Woolhaven, casting the 
evil Bishop as the villain who keeps finding them. For the wider cast, see the full 
Cult of the Lamb characters roster.
Aza and Keru are the entire point of Koka's Quest Board. Per the wiki, every mission Koka posts is about playing Hide and Seek with her two daughters, so finding the twins is a recurring Woolhaven task rather than a one-off.
The game is pure make-believe. According to the wiki, the sisters treat each round as an escape from the "evil Bishop," cheering when you find them and vowing to hide better next time, complete with a little lamb lullaby they sing together.
Each round moves the pair. The wiki notes the twins relocate to a new spot for every Hide and Seek mission, so completing Koka's board means seeking them out in a series of different locations across the DLC and its crusade stops.
Talk to Koka between rounds to advance the game. In practice her quest board drives the whole Hide and Seek chain, so checking in with the mother is how you unlock each new hiding spot for the twins.
The twins hide in a rotating set of locations, mixing cult spots with crusade stops. Per the wiki, their Hide and Seek rounds send you looking around your own cult, Pilgrim's Passage, the Spore Grotto, and beyond.
Some hiding spots are other characters' shops. According to the wiki, Aza and Keru turn up at Plimbo's Smuggler's Sanctuary and inside 
Midas's Cave, so the search doubles as a tour of Woolhaven's vendors.
Your own cult grounds Pilgrim's Passage and the Spore Grotto Smuggler's Sanctuary and Midas's CaveThe reactions change as you win. The wiki records the twins growing playfully frustrated the more you find them, from "how'd you find us?" to Aza pouting that it is not fair, before Keru cheerfully asks to play something else.
The payoff for the whole game is a fleece. Per the wiki, Aza and Keru are tied to the Fleece of Youth, themed around clothing the young in joy, a fitting reward for a quest built on child's play.
It is a cosmetic prize, not a combat one. The Fleece of Youth sits alongside the DLC's other fleeces, so completing Koka's Hide and Seek board is about collection and story rather than a stat boost.
Finishing it also closes the twins' arc. Seeing the sisters through every round of Hide and Seek is one of the gentlest storylines in a DLC otherwise full of grief, which is exactly why the joy-themed fleece lands the way it does.
The sisters are named for angels. Per the wiki, both twins take their names from Cherubs, with Aza pointing to Azazel and Keru to Kerubiel, a softer twist on the game's usual demon namesakes.
Keru has a secret bite. According to the wiki, the animated short Hide and Sheep shows Keru with sharp, fang-like teeth, unlike the straight teeth of the rest of her family.
The twins have official ages. The wiki cites a developer AMA confirming Keru as the older twin and Aza as the younger, settling which lamb gets to be the Shepherd in their games.
Aza and Keru are the softest corner of the Woolhaven DLC. These guides cover the content they live in, the vendors they hide behind, and the cult you build between crusades.
Game data and screenshots adapted from cult-of-the-lamb.fandom.com, used under CC BY-SA 3.0. Original content remains the property of the wiki contributors and Massive Monster and Devolver Digital.