Tsubomi Hanasaki is the main protagonist of the anime series HeartCatch PreCure! She is a shy and introverted middle school student who loves flowers and dreams of becoming more confident. Tsubomi's life changes dramatically when she becomes Cure Blossom, a legendary warrior tasked with protecting the Great Heart Tree. Throughout the series, she learns to overcome her insecurities and works with her friends to fight against the Desert Apostles, who seek to spread despair and darkness. Her journey highlights themes of friendship, personal growth, and the power of hope.