The Reason for the False Demon's Existence

Her lovely appearance and overflowing kindness have earned her the title of "Angel of the Academy"—Mizuki, the older sister. Her flashy appearance and presumptuous attitude have earned her the title of "Demon of the Academy"—Akira, the younger sister. The two are thought to be complete opposites, but in reality, their relationship is a fabrication. Akira is actually a girl from another family who was taken in solely to protect Mizuki, and has devoted her life to serving the Shirakawa household. Akira has been secretly disposing of the foolish admirers who flock around this naturally pure-hearted angel, but when the search for a suitable husband for Mizuki—now in the prime of her maidenhood—begins, Akira's world gradually starts to change.