Mana Nagase is a central character in the anime series 'Idoly Pride.' She is a talented and popular idol whose sudden passing leaves a significant impact on the characters and storyline. Mana was known for her exceptional singing abilities and charismatic stage presence, earning her a large fanbase. Her legacy inspires a new generation of idols, including her younger sister, Kotono Nagase, who strives to follow in her footsteps. Mana's influence continues to be felt throughout the series as her spirit and dreams drive the aspirations of those she left behind.