This paper develops an account of ethical obligation that endures beyond the field of appearance. It argues that visibility, recognition, and addressability—long treated as the preconditions of ethical relation in phenomenological and post-phenomenological traditions—are contingent rather than necessary structures. Through a process of subtraction, the paper removes manifestation itself as a condition for relation, formulating a model of minimal ethical relationality defined by five features: non-visibility, non-recognition, non-addressability, non-horizonality, and non-mediated endurance. Drawing on and diverging from Husserl, Heidegger, Levinas, Butler, and Arendt, it constructs a non-phenomenological ethics responsive to those who remain excluded, erased, or invisible. The argument concludes that ethical life does not depend on appearing, being recognized, or being addressed, but on the structural endurance of relation itself. This reconfiguration replaces the traditional ethics of encounter with an ethics of endurance, grounding responsibility in persistence rather than manifestation.