Lyra accidentally wanders into Lord Immortal Alastair Morgan's forbidden grounds and spends a night with him. He mistakes her for her senior sister, Rosalind Lowell. Lyra hides her identity, facing schemes from Rosalind Lowell and conspiracies from Peak Master Landon. Lyra is framed, faces expulsion. Alastair Morgan develops feelings but remains in the dark. As truth comes to light, he doubts Rosalind Lowell's identity. Can Lyra resolve the misunderstanding and reveal the truth?