B3-Iin Chiyo

B3-Iin Chiyo is a student at Rentarou School, known for her tidy and serious personality. She is a member of the school's cleaning club and takes her responsibility to keep the school clean very seriously. One day, while walking home from school, she noticed a classmate casually throwing away their Starbucks cup on the floor instead of in the trash can. This infuriated Chiyo, as she believes in the importance of cleanliness and proper waste disposal. She confronted the classmate and demanded that they clean up their mess immediately. From that day on, Chiyo made it her mission to ensure that everyone at Rentarou School follows proper waste disposal procedures, no matter how small the task may seem.