Aperture Travel

Overview
A Space-Time technique utilised by Michirama's Rinnegan that allows him to create a portal to another location within the same dimension.

Usage
By focusing his chakra, Michirama can open a portal within his line of sight through the use of his Rinnegan. Michirama cannot create portals to anywhere he pleases at a whim, he must have at least seen an image of the area he wishes to teleport to at some stage. By actually visiting the area Michirama can form a portal to that area much faster as well as use less chakra than if has just seen an image.

Drawbacks
The distance of travel takes a toll on Michirama's chakra. A short distance travel, (example Kogakure to Konoha) will drain a decent ammount of chakra but still leave him with a relatively full pool of chakr. However a Long Distance travel (Konoha to Kumogakure) will drain a large amount of chakra leaving Michirama feeling lethargic.

The number of people that can travel through the portal for "free" is only 4, anyone after that will use up a large amount of Michirama's chakra.

Some people, if not use to the travel may get sevre travel sickness.