༒D͟e͟a͟r͟ ͟E͟x͟p͟e͟r͟i͟m͟e͟n͟t͟༒ [Mermaid!reader x Yandere Fatui harbingers]

╔═════ஓ๑♡๑ஓ═════╗ after so long sleeping in a block of ice, our dear Reader find herself in another body and another dimension. lock up on a cell, what appears to be a abandoned lab. for some reason, her old self miss something yet she couldn't place her fingers on it... wait, why is that blue blurry figure familiar...