Kimon (The Maverick013)

Overview:
The Kimon is an interdimensional gate in Dragon Ball : Alternate AF. It is only used by the Jikan Hogo-sha to travel between dimensions and timelines, using Qigong to open it. The Kimon is accesed by a giant floating door that opens in the sky, it brokes the dimensional wall and manifest with a shinning light that changes color rapidly. The door is apparently made of wood and leaves, suggesting a connection with the Daikaiju. The inner part of the portal is a pit with rainbow-colored walls, inside this pit, endless rocks flies at great speeds and represent a constant treat to anyone that crosses the Kimon, this rocks are made from the energy released from the fight between the Daikaiju and the Daikodoku, solidified by the intense consentration of power on a single spot. The final part of the gate is a black portal that lies at the bottom of it, this connect the rainbow-colored tunnel with the Daikaiju's resting place. During long times the Jikan Hogo-sha have protected the Kimon from the Deva-Ourers, if one of this beings manages to enter it, many catastrophes may happen.

Trivia:

 * Kimon means "Demon Gate".
 * Kimons are part of the japanese folklore, it is said that they lieas at the northeast direction, which is an unlucky direction.