Sō Akiyama (秋山 奏, Akiyama Sō) Voiced by: Takuma Terashima (anime), Yurika Aizawa (7 years old) He is a second-year student in class B and a member of the Astronomy Club at Uchihama Academy. Both his father and mother are scientists and are authorities on mechanical engineering. He lives in his childhood friend's house as his parents work overseas.