(Hah! Great argument! Leo gets points ♪♪ and a laughter out of Ren. Maybe they should sit, so Ren squints behind the glasses, just to check if there's a tree or somewhere comfortable where they can actually talk this out. Standing here in the middle of nowhere just isn't comfortable, so he guides them towards one and sits under the shade.

The knife is no longer being fidgeted with, but it rests on Ren's side, easy to pick up should anything pose a threat to them.)

Let me put this another way. I know the pieces don't fit.

(Specially after he saw him and Akechi psycho sparring and heard his codename loud and clear. He cannot just continue posing as a teen barista after that, can he?)

I know it's not enough or even a satifying answer, but I do have good reasons and you can trust that much.