Sumireko Sanshokuin, also known by her nickname 'Pansy', is a main character in the anime series 'Ore wo Suki nano wa Omae dake ka yo'. She is a quiet and intelligent girl who tends to observe everything around her. Despite her reserved nature, she is deeply insightful and often provides unexpected support to others. Sumireko has a complex personality, revealing her sharp wit and resourcefulness as the story progresses. In the series, she plays a pivotal role in the romantic and comedic situations surrounding the protagonist, Joro, often acting as a catalyst for his growth.