Movie
Description
Procyon, a name also written as Prokion in some romanizations, is one of the three central figures in the opening of the anime Galaxy Investigation 2100: Border Planet, together with his childhood friends Subaru and Mira. The three grew up together and were inseparable from an early age. A recurring memory in the story shows that when sweets of different sizes were shared, Subaru would immediately give the largest piece to Mira and, after a moment of hesitation, the middle piece to Procyon, a small detail that captures Procyon's quiet and modest place within the trio.

As the three became adults, both Procyon and Subaru fell in love with Mira, but Procyon was the one who confessed first and asked for her hand in marriage. After graduating from university, the two married. Procyon worked in space-connected duties; he is described as an astronaut, and also as an electronics technician serving at the spaceport. On the night of the wedding, he was called out to assist with the rescue of a ship involved in an accident. Inside the vessel he came upon an unknown substance, a virus that destroys the bonds between cells and causes the human body to dissolve. Merely touching it with the tip of a finger was enough to infect him. His condition deteriorated rapidly, and that same night, before Mira's eyes, his body dissolved and he died.

Because Mira might also have been infected, she was placed into cryogenic sleep to halt the progress of the illness, and Subaru devoted himself to traveling across the galaxy in search of the virus's origin so that a vaccine could be created. Procyon's death is therefore the event that sets the entire story in motion. He appears mainly in the opening scenes and in the characters' memories rather than as an active participant in the journey, yet his absence defines the central conflict of the work.

In personality, Procyon is shown as decisive in matters of love, declaring himself to Mira before his friend did, and as responsible in his work, answering an emergency call even on his wedding night. His motivations rest on these two qualities: his love for Mira, which leads him to build a life with her, and his sense of professional duty, which draws him to the scene of the accident. His most important relationship is with Mira, whom he loved and married; their union left Subaru to watch their happiness quietly from a distance. His friendship with Subaru also carries weight, as Subaru, despite any personal pain, continues to hold unchanged friendship toward Procyon after his death.

Because Procyon dies so early in the story, he undergoes little character development; his role is that of a catalyst whose tragedy shapes the lives of the two people he leaves behind. He is not shown to possess any special powers or combat abilities. His notable capability lies in his professional skill in space operations, whether as an astronaut or as an electronics technician, and it is precisely that line of work that places him at the site of the accident that costs him his life.