Twin Spica (ふたつのスピカ, Futatsu no Supika) is a science fiction manga series written and illustrated by Kou Yaginuma in 89 chapters. The series tells a coming-of-age story of high school students in the early 21st century training to participate in one of Japan's first human spaceflight missions. It centers around the lead character Asumi Kamogawa, whose decision to become an astronaut is influenced by a family tragedy and a mentor figure from her past.