Here's the trailer for Lost Soul Aside's PSX 2017 special demo

Lost Soul Aside captured everyone's attention when the indie developer Yang Bing released a stunning and impressive gameplay video of it, which he has worked on alone using Unreal Engine 4 for a few years. The game returned to the spotlight during this year's PlayStation Experience as it was playable on the show floor. 

Evidently inspired by Final Fantasy XV, the Lost Soul Aside is still under development and has ways to go until completion. Yang Bing has expanded the dev team under Ultizero Games, and they're actually recruiting for more aspiring developers to help with the project. You can learn more about it in Ultizero Games' official website.