This is just my theory but since the urn was empty and the doctor guy (I’m bad with names) said that they moved it once before that final area, then that could mean in that move it was emptied??? But also my thoughts about the ex-partner being there maybe that group that made those chimeras did different human experiments first? Since there were two different experiment files.

I'm confused... Why does the empty urn show Jaemin is MC's ex partner? Does the old body have to disappear or something? I don't to recall anything happening to MC's old body though...