Sakura no Himegoto

Sakura no Hiji / The Secret Sakura Shares / サクラの秘事 / 樱色秘事 Narinomiya Aoi, the daughter of a distinguished family, has a secret. Thanks to her grandfather's debts, she's now the "pet" of Katsuragi Kei, a rebellious new student at their prestigious academy. How will she escape the burden of the debts and what exactly is Kei actually after?