<7 year old AU, after watching a spy movie>

Atsuya: Hey aniki, do you think being a spy is hard?

Shirou: *thinks* well if you can climb and all, I think you'll be fine

Atsuya: OK! THANKS ANIKIII---

Shirou: Sure...?

<A few moments later>

Atsuya: *screams* AHHHHHH---

Shirou: *goes outside carrying a pan* ATSUYA, WHAT'S WRO-- *sees Atsuya hugging a tree not far from the ground*

Atsuya: ANIKI- AM I ALREAY ON THE TOP YET?

Shirou: *facepalms at the scene, dropping his pan* Atsuya, you barely left the ground...

Atsuya: *let's go with a huff then fell on the white snow* Sheesh... Being a spy IS hard...

<Extended ending>

Atsuya: NOOOO, I PROMISE TO NOT DO IT AGAIN ANIKI---

Shirou: *crosses his arms* Nope. Still not going to give you that.

Atsuya: *is close to tears* Just gimme my cookies back---