Buzzing Memories (Lost and Found) [Bumbleby]

Blake sees Yang fall into the void and vanish, and that's when she reconciles all of their memories together, and wishes how she could've told Yang how she felt sooner.

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Or, when in Volume 8, Yang falls off the platform and into the sudden 'void', and Blake doesn't know how to cope. All she can think of is the memories shared with her partner, and how she should've kissed her, and told her how she felt.

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A BUMBLEBY ONE-SHOT.