Kasuga is Ninja serving Uesugi clan, and former subordinate of Sarutobi Sasuke.<br /> <br /> Before the current story line, she was sent to assassinate God of War, Uesugi Kenshin. But when she saw Kenshin, she fell in love with his beautiful self immediately.<br /> <br /> Since then, she became Kenshin's "Beautiful Sword" and his most trusted warrior.<br /><br />
