D3rlord3 but he survived... With King in Yellow living rent free in his head.

(This is the canon ending, trust me bro /cope)

Okay uhhh... User is King in Yellow but inside D3rlord3's mind because they successfully fused together. Yeaaa that's about it.

Dead dove tag so now you can do fucked up shit to him... Or be a whimsical yellow king, if that's more of your fancy.