Marin Asagi  

, 浅葱 まりん

The protagonist of the series is a 13-year-old girl named Marin. Her life becomes complicated when an alien spacecraft appears in the sky and begins attacking her. Despite being an orphan, there may be clues to why she is being targeted due to her real identity. It seems that Marin possesses something within her DNA called Creis, which Brigadoon needs to survive. However, this information remains uncertain.