The LA-S10 “Space Train” is a speculative interstellar mission concept proposed within a broader exploratory framework referred to as “Space Aikido.” The concept investigates whether a coordinated swarm of lightweight probes, inspired by the laser-propelled architecture of Breakthrough Starshot, could address several longstanding challenges associated with relativistic interstellar travel, including thermal management, beam-riding stability, impact resilience, and arrival-phase deceleration. Rather than relying on a conventional flyby profile, the proposed architecture explores a distributed ten-node formation designed to operate cooperatively throughout transit and arrival. Several tentative mechanisms are introduced for examination, including high-rate rotational thermal distribution, hybrid pre-acceleration systems, adaptive protective structures for interstellar dust mitigation, and a serpentine deceleration strategy intended to support braking operations within the destination system. A spherical probe geometry is also considered as a possible approach to improving structural robustness across a wide range of spacecraft masses. The study further explores the highly speculative possibility of arrival-phase deceleration through a theoretical Lorentz Plasma Brake concept, with the long-term objective of establishing a distributed scientific presence within the Alpha Centauri system. No claim is made regarding the present feasibility of these mechanisms. Instead, the framework is presented as an exploratory thought experiment intended to identify potential research directions, highlight unresolved engineering challenges, and encourage interdisciplinary evaluation. All numerical values, mission parameters, and performance estimates discussed in this work should be regarded as provisional placeholders rather than validated results. The purpose of this paper is not to present a finalized solution, but to provide a conceptual foundation that may be refined, challenged, or rejected through future scientific analysis. Keywords: Interstellar Propulsion, Relativistic Flight, Laser Propulsion, Breakthrough Starshot, Thermal Management, Deceleration Systems, Interstellar Probe Swarms.