Add Clyton is a mystical, sentient suitcase that serves as the familiar and close companion to Gray in the anime series 'Lord El-Melloi II Sei no Jikenbo' (The Case Files of Lord El-Melloi II). Add possesses the ability to transform into a powerful scythe, which Gray wields in battle. He has a distinct, somewhat sardonic personality, often engaging in banter with Gray and other characters. Throughout the series, Add plays an essential role in both combat and investigation.