A plausable connection... Zed, Sona, Garen, and Vi
Yah, another theory about this whole zed thing...
Shocker.
Well on to business. Everyone is trying to figure out what the hell is going on with this mystery. Something hit me while I was working today... what if the other three, rather connecting them somehow through thier backstory, what if the three represented the three ninjas of the kinkou...
If this thoery is true (which it very likely is or isnt) is that Garen would represent Akali. Strange comparison, right? Think of it like this. Garen is a Demacian general. He does Demacia's bidding for the sake of it. Akali does Balance's bidding. Keeps balance in check through whatever means. They both serve each with unmatched loyalty.
Next is Vi...
She would represent Shen... another odd comparision, right? Not so far fetched. Vi is an officer of Piltover. As such she is what keeps balance. Shen is who decides what is balance in order to keep it in check.
Lastly, Sona... ( <3 her, she my main)
As youd think it is Sona and Kennen. What do these two share? Sona is a musician... what does this do with Kennen? Well, Music is something most often something that is said to come from the HEART... Kennen is the HEART of the Tempest...
Thats my thoery... you can also swap Vi and Garen and get roughly the same. As gor Zed, hes just Zed...
Edit: Moreover its just similarities I found conveniently funny