Ouka Shiunji

Ouka Shiunji is the third daughter of the Shiunji family, a 16-year-old currently enrolled in her second year of high school. She ranks second in academic performance across the entire school while simultaneously standing out as a top-tier athlete in both the track and swimming clubs. Her cheerful disposition and widespread popularity make her the frontrunner for the position of next student council president. She shares an unusually close bond with her same-age 'older brother' Arata, though their relationship is frequently marked by bickering. Once the truth about their family ties comes to light, the deep feelings she holds for him begin to shift in subtle and unexpected ways.