This takes place a while after the Mephyland incident. Rin notices a strange black tattoo that glows a faint blue when he's near demons. Yukio finds out and tells him the meaning of the 'totally cool' tattoo.

This is a oneshot I promised my fans on Ao3. Thought you guys would like to read it too. :) It's about the meeting Yukio and Amaimon had.

Just a Bon x Rin one-shot my friend ask me to write her lol sorry it's sloppy I wrote it really fast in the morning on the bus on the way to school lol

>///<

Rin was jealous of Yukio of the ways he talks with Shiemi. So Rin tries to make his brother uncool. However Yukio does something that Rin would never expect for so long. This is a one-shot story. Inspired by Ao no Exorcist #566230 from Zerochan.