Okay for anyone who watched No Game No Life I have a theory. I believe that in the movie No Game No Life0 it strongly hints that Sora and Shiro are reincarnations of the lover 6000+ years ago and how they died separately. Shuwi said that she would come back and that they will always be together forever. Riku said they’d never be apart. That why it lead me to believe that they were reincarnated all these years later so they could win and put the Immanitys back on top. And Riku said he wanted to win one game his possible reincarnation Sora has never lost with his STEP sister by his side which is what Riku said about Shuwi. He said he felt like he do anything when she was around. Not to mention the characters look identical to each other with a few slight differences.But hey that’s just a theory. And I ship an 11 year old with an 18 year old. 𝑇𝑒𝑎