Jan 1, 2024 · Kuro, also referred to as Sleepy Ash orSloth, is the deuteragonist of Servamp. Kuro, named by his Eve, Mahiru Shirota, is the Servamp of Sloth. He is the oldest of the eight Servamps. When he is exposed to sunlight, he transforms into a black cat. Being the Servamp of Sloth, Kuro spends his time sleeping, lazing around or playing video games.