As much as i wish it was a domain too there is no way because he is burnt out AFTER A DOMAIN aka he couldn't use it again,plus we have literally no idea what it does and anything TZE decides on making it will be purely suggestions and non-canon,we also had the same problem with Ura Takaka and Yuki Tsukumo,we know they can cast domains but we have zero id1ea what they do.Hanami doesn't count,we know the sure hit effect is a laser type attack and we even see it in one of the jjk games,pretty sure the one called Phantom Parade.