Sumireko has shown herself to be extremely intelligent, determined, passionate, and hubristic in equal parts. At her best, she is friendly and passionate about life and learning about the world around her. At her worst, she can devolve into stubbornness and outright obstinance, going so far as to put herself in grave danger to achieve her goals. Despite her apparent superiority complex, she has grown to have a deep respect and admiration for the inhabitants of Gensokyo. Touhou