DELight WORKS had announced their brand new project in AnimeJapan 2019 occurred on March 23th, 2019. In the event, they revealed the project’s key visual as well as teaser trailer ¹. This project doesn’t own an official name yet but its code name is 03-a. According to the information written on official website ², 03-a has been developed by Unreal Engine 4 on iOS and Android platforms. Currently, other information such as genre, story, battle system, mode, etc. haven’t been disclosed.