There was nothing special about Yuji's domain. It wasn't majestic like Sukuna Malevolent Shrine, which was described to be a work of art by the author when it debuted, and it wasn't described to ...
Yuji's upcoming Domain Expansion will be the final test to ... He was then trained in the art of blood manipulation by none other than Choso, and likely also helped by Noritoshi Kamo.