Scabbard

Scabbard (鞘,Saya; Lit. English: Sheath) is a fuinjutsu created by Natsu Uzumaki-Namikaze in hopes of becoming stronger, and to impress Sans.

This seal is normally placed upon the user’s mid back area, so it can access all of their chakra routes. This seal takes shape of a blooming rose with a few petals falling from it. The seal is known for two capabilities and usages. The first capability is that is allows the user to become aware of all the emotions of people around them. The way this happens, is his mental state becomes aligned with the astral plane allowing him to start see aura fields around others. While it seems like the chakra natures, the aura comes in a variety of colors depending on the emotions. This becomes a passive ability that Natsu has to learn to control.

The secondary ability is, that due to being connected to the Astral Plane, it becomes, mainly a dimension that hold several types of odd outfits that gift the users with different powers. The user is not fully aware of what happens, when they activate this technique, they simply come to the user at random. This does take away the user’s normal jutsu and replaces them with newer abilities.