This paper presents holding within the first system of Kasei-Theory as a non-modal readability maintainability architecture. The paper does not propose a theory of possession, ownership, storage, control, preservation, completed configurational containment, possession-derived ownership, preservation-derived continuity, storage-derived containment, control-derived regulation, maintainability-derived retention, or transcendental holding order. Instead, it fixes holding, constrained holding, configurational differentiation, local maintainability, unreadability, formal holding, and non-totality as distributed structural positions within constrained local readability maintainability. Holding is not treated as possession, ownership, preservation, storage, control, or containment, but as constrained holding under which configurational differentiation remains locally maintainable without universal possession, completed preservation, stored continuity, supervisory control, or total configurational closure. Holding does not establish possession. Holding does not establish ownership. Holding does not establish storage. Holding does not establish control. Holding does not establish terminal configurational containment. Holding remains fixed only as constrained holding within readability maintainability. This paper fixes only the local holding conditions under which configurational differentiation remains maintainable without transition into universal preservation, completed continuity, possession-derived ownership, storage-derived containment, control-derived regulation, maintainability-derived retention, or total configurational integration. No subject is presupposed. No possessive structure is established. No universal holding structure is secured. No total configurational closure is completed. This paper is part of Kasei-Theory.