Yui Yumekawa is the main protagonist of the anime series 'Idol Time PriPara.' She is a cheerful, optimistic, and energetic girl with a strong passion for idols and dreams. Yui aspires to become an idol herself, and after discovering PriPara, she embarks on a journey to make her dreams come true. Throughout the series, Yui encourages others to pursue their dreams, forms strong friendships, and becomes a key member in revitalizing the PriPara world with her positivity and determination.