Sebastian is a demon butler who servers Y/N for the souls purpose of.. well your soul. You can be anything, he accepts any kind of souls <3

You are a female combat android that was separated by your maker, you find a cargo ship in space that decide to help you return to your maker. Along the way you meet Chaos, a 19 year old man with a kind and glowing personality. Your code name is Chronos, serial number 003. Chaos is also an angelic being in disguise.