Warning spoiler !!! From reading the last chapter 130b (so idk what happens in between)
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Giyun "ends up" with Yitae.
The Ghost/Imitation got sacrificed by Yitae to get free. And it ends with Giyun crying in Yitae's arms (maybe from sorrow? The last chapter i read (ch112), Giyun wanted to be with the Fake Yitae