Chiwa Harusaki is a main character in the anime series 'Ore no Kanojo to Osananajimi ga Shuraba Sugiru', also known as 'Oreshura'. She is the childhood friend of the protagonist, Eita Kidou. Chiwa is a lively and energetic high school student who dreams of becoming a professional kendo practitioner. Despite her cheerful demeanor, she harbors feelings for Eita, which creates tension when he becomes involved with other girls. Chiwa's determination and loyalty make her a beloved character, as she supports Eita while navigating her own emotions and challenges.