The Little Black Bestiary: The Salted Cookies of Carthaginia

This is a short slice-of-life visual novel about an average guy spending an afternoon hanging out with his girlfriend Carthaginia, [former] Eternal Dread Empress of Samhain, [retired] Nation-eater, and Immortal Lich, presently on parole for charges of attempted inter-dimensional conquest, raising a skeleton army without a permit, and disturbing the peace... he did always have a thing for powerful, assertive, older women. Since Carthaginia's nation conquering days seem to be behind her, you'll just be watching TV with her, helping her with tech support, and *ahem* 'getting busy.'