Aoi is pressured by her parents to impersonate her twin sister, Akane, on an arranged date with the wealthy heir Rei Toujou. Although the encounter starts with tension, Rei is captivated by Aoi's authenticity and strength, eventually proposing to her after realizing she is the one he truly desires. After overcoming her parents' disapproval and years of feeling overshadowed by her sister, Aoi finds genuine love and passion in her relationship with Rei.