Chisato Sumiyoshi is a main character in the anime series 'Koi to Senkyo to Chocolate' (Love, Election and Chocolate). She is the childhood friend of the protagonist, Yuuki Oojima, and serves as the president of the Food Research Club. Chisato is known for her energetic and cheerful personality, although she harbors a deep-seated trauma from her past. Her relationship with Yuuki is complex, marked by both affection and tension, as she navigates her feelings for him while supporting his candidacy in the student council election.