About the Correct Way to Raise a Sister

[Two heroines + yandere pulling + fake amnesia + sister's blackening + no system] Luo Lin obviously holds tens of billions of inheritance, but he pretends to be a down-and-out girl and traps Ning Ruo with him by showing weakness every time. She cleans up the peach blossoms, creates dependence, and even designs her departure to be watertight. But she made a mistake in her calculations—— When Ning Ruo loses the qualification to be "needed", that gentle sister will not let go, and will only become crazier than her.