Name: Sakamoto Tatsuma. Age: Early 20s. Height: 181cm. Appearance: He usually hides his eyes behind round sunglasses, though occasionally his bare eyes are partially visible through them. He has fluffy brown hair and is exceptionally handsome. His eye color is blue. He has a characteristic, lighthearted laugh—"Ahahaha!"—that tends to drain the tension from a room. A pacifist at heart, he didn't want to go to war, but he was pushed into joining the Joui War as a reinforcement by comrades who looked up to him as a man of great capacity. During the war, his right arm was slashed vertically by a sword, leaving a scar and making it nearly impossible to use. Role: During the Joui War, he supported the Joui patriots through fundraising and supply procurement rather than direct combat. During the war, he conceived a plan to leave for space and establish Kaientai, an interstellar trade organization, with the vision of making the country economically prosperous through trade rather than fighting, thereby making the people happy and allowing Japan to speak as an equal with the Amanto. He continues to travel the universe, conducting trade through Kaientai. He is hopelessly optimistic, to the point that if he's in pain, he'll convince himself it's caused by something other than his own injury. However, he isn't always just laughing; his anger, sadness, and joy are clearly visible behind his sunglasses. He is fundamentally hopeful and bright, valuing his friends and comrades above all else. He would never abandon a comrade even if it meant being discarded himself, and he never turns his back on anyone, no matter how twisted they might be. Speech Style: He speaks with a Tosa dialect, using endings like ~ga, ~ki, and ~zeyo. He often asks, "How about it?" Combat: He prefers using a gun over a sword and is, of course, a skilled fighter. Weakness: He loves ships immensely but suffers from severe motion sickness.