Chieri Yotsuba is a key character in the '7th Dragon' series. She plays the role of a skilled and resourceful fighter who is part of the team tasked with saving humanity from the dragon threat. Chieri is known for her strategic mind, bravery, and unwavering dedication to her comrades. Her character development is central to the storyline as she navigates the challenges of leadership and personal growth. Throughout the series, her interactions with other characters highlight her compassionate nature, and she often serves as a moral compass for the team.