Jobko is a 12-year-old genius international student and a high school student. Since her father is the president of a famous IT company, so she has a high level of knowledge of cutting-edge technology. In her hometown, she experienced DIY with her mother, so her knowledge and skills are far superior to Serufu's. At first, she hated DIY because she made fun of it as "outdated". However, she came from the loneliness of being in an unfamiliar place and being surrounded by older people.