Due to its unique geographical location, Dark Rigid produces many rare treasures that are unmatched in the world.

The Grand Sky Sect formed an alliance with Dark Rigid, establishing a marriage agreement between Feng Fei and Jiu Li.

Every year, the Grand Sky Sect provides various forms of assistance to Dark Rigid, and in return, Dark Rigid sends rare treasures to aid the Grand Sky Sect.

The rare treasures from Dark Rigid are highly coveted by any sect.