Tsukasa is the 18-year-old protagonist. While in high school, he tries to hit the job market, but to no avail. After graduation, he eventually gets a job through his parent on the "Terminal service," which is the department of the SAI Corp that is known as first-rate corporation although at first he does not know what they do. He does not have a lot of knowledge about the "Giftia."
(Source: Wikipedia)