Kitten sheepishly explains that following the Horus Heresy, the Custodes felt so much shame for failing to protect the Emperor that they "redefined" the use of their armor.
In Episode 7, the Emperor grows suspicious and demands to see his elite personal bodyguards—the Adeptus Custodes (or "Companions")—whom he hasn't laid eyes on in millennia. 🍌 The Iconic Reveal Ep_s01e07_-_Message_to_the_Emperor
: To the booming tune of "Awaken" from the anime JoJo's Bizarre Adventure , three hyper-masculine, oiled-up Custodes strut into the throne room. Kitten sheepishly explains that following the Horus Heresy,
In the broader lore of the series, Captain-General "Kitten" has installed a text-to-speech device on the Golden Throne. This allows the skeletal, psychic God-Emperor of Mankind to finally communicate after 10,000 years of silence. 000 years of silence.