Ryouiki Tenkai translates to 'Domain Expansion' in Japanese. It is seen in the anime Jujutsu Kaisen for the first time when Ryomen Sukuna says 'Ryouiki Tenkai, Fukuma Mizushi' translating to Domain Expansion Malevolent Shrine. This is a reality marble that makes everything surrounding the user into their Domain.
by GreenRhysGrim March 28, 2022