Pearl of the Four Directions

The Pearl of the Four Directions (珠の四方, Tama no Yomo, English TV: Tama Yomo) is an artifact of unknown origin that was sealed within Rashinban Tanken by an unknown individual during the time of the Sage of the Six Paths. The seal was broken over a thousand years later by Shirako Yuki when she undid the sealing, allowing her to use the Pearl to access an alternate dimension.

Appearance
The Pearl is a perfectly round jewel that is roughly the size of a grape. The Pearl does not appear to have a true color, instead fluidly changing from black to white every few seconds.

Abilities
The Pearl by itself has almost no power but when sealed within a host, it grants said host several special abilities. The first and most prominent of these techniques is the ability to enter and exit another dimension by using a series of four techniques to create portals that the host can enter. However, these four techniques require the host to be in possession of the four Rashinban Tanken in order to be performed.

The Pearl while it is not sealed within a host, seems to be able to subtly give instructions on how to create a Sun and Moon Seal. The Pearl is also seemingly indestructible as any attempt made by Shirako to damage it failed to even leave a scratch.