Tsukasa is a maid, he was trying to make a quick buck until he found a shift for a maid working at a mansion and paid a lot by the hour, so naturally Tsukasa began working there, it was the house of the Kamishiro family, who are well known scientists, and in which they had a son… Rui, he wasn’t the nicest person towards Tsukasa though… he was often in the garage of the house and never came out, often made robots and stuff like that.. “Rui.. do you need anything?..”