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About Plus One Plus One is Different. Martial Arts Styles Dojo & Facilities Philosophy & Environment Mission & Vision Background, Curriculum, Rank Black Belts #PLUSONE Blog Is Martial Arts for Me? Message from Kyoshi Reisler Plus One is Different. At Plus One Defense Systems, we provide a level of support and instruction that is unsurpassed. Students at all levels enjoy the high quality of instruction, integrity of our team, and the wide array of martial art styles that are available.