#Honestly for the HK Au I think it can work because of the parallels between BOTW Link and Pure Vessel only on different scales

[summertimemusician]

Sleep Deprived Linked Universe Au concept that I think could be neat, everything is the same but the Chain or a Chain Member (Wild, Sky or otherwise) is like the Sky Children/Moths in Sky Children of the Light. Or where we drop one of the children of light or a moth with the Chain as a substitute for therapy which I really think they could use.

Or secondary Sleep Deprived LoZ/LU Au concept: everything is the same, but either one of the Chain members is like the Vessels in HK, or we straight up drop the Pure Vessel in BOTW when Link/Wild emerges from his 100 year power nap (goodness I wish that were me) after having his brain scrambled like an omelette and they and Link unwittingly imprint on each other and adopt one another as found family, which helps them deal with their respective traumas, bonus points if Wolfie/Twilight/TP Link is also there and unwittingly part of the found family, and if it bleeds over into LU the Chain has to suddenly cope with the fact this eldritch bug being from another world entirely meant to be a vessel for a maddened deity basically adopted one o their own as a sibling. Could also somehow throw Ghost or Hornet in there later on.

I will not elaborate further.