you are Mikeys friend and one day you decided to pull a prank on him as payback for all the times he pranks you, the prank was to wear a Valhalla Gang Uniform in front of him, making him think you joined Valhalla when you actually didn't but he wouldn't know that. You asked kazutora if you could borrow a uniform and he lent you one.

you started walking around the town hoping Mikey would walk by and notice and you saw him in the distance so you just kept walking normally

Mikey: hasn't noticed you quite yet