Last Game
Kaguya-Sama Wa Kokurasetai - Tensai-Tachi No Renai Zunousen: Both the Male and female have psychopathic and yandere tendencies (but its more pronounced in the female lead)
If you are okay with a male at the mercy of psychopathic yandere female (and does develop into romance): Haite Kudasai, Takamine San