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Senki Zesshō Symphogear 3.5 (戦姫絶唱シンフォギア3.5? "Superb Song of the Valkyries: Symphogear 3.5), subtitled "Connect heart beyond the time", is one of the events of Senki Zesshō Symphogear XD Unlimited, set between Senki Zesshō Symphogear GX and AXZ. It ran from July 18, 2017 to July 31, 2017.