Tensions from the Selector battles have seemingly vanished, and the remaining participants have quickly put the entire ordeal behind them. However, Kiyoi Mizushima feels that the conflict has yet to end. Despite Kou Satomi's defeat, his supporters are already attempting to revive his plans in the background. It does not take long for Mizushima's suspicions to be confirmed true. Not only does the Selector battle system reemerge, but also a new mechanic has been implemented. Players receive a special key card that will unlock with gold coins, releasing a hidden power. Aware of the formidable foes that lie ahead, Mizushima begins to seek out skilled allies in her endeavor to finally break the cycle of darkness.

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Lostorage Conflated WIXOSS was released on Blu-ray and DVD in three volumes from August 30, 2018 to December 20, 2018. The Radio WIXOSS: Conflated Edition program featuring discussions of the series by the show's voice actors streamed on the Onsen internet radio station from March 30, 2018 to July 6, 2018. A set containing a CD of the radio program and a card binder was made available on June 21, 2018.