令嬢スリープ30年!兄たちの後悔が止まらない!

The beloved youngest daughter is framed by a wicked actress and loses her identity as the real heiress. Shunned and mistreated, she quietly protects her family. She joins her brother’s sleep project and enters a capsule. Only after she sleeps do they realize the truth. Regretful, her brothers wait 30 years—until their hair turns gray—to see her again.