Was it not left by Urashiki?
That’s why their was sand there. Urashiki has Gaaras sand ability.
+ the lightning that took out the guards looked like Mitsukis lightning snake jutsu.
Something we know Ura has too.
Lastly, the new villains look like they could be ootsusuki servants
& not a coincidence, there’s a meeting about Urashiki in the same episode
Maybe this Mitsuki arc will be interesting
That’s why their was sand there. Urashiki has Gaaras sand ability.
+ the lightning that took out the guards looked like Mitsukis lightning snake jutsu.
Something we know Ura has too.
Lastly, the new villains look like they could be ootsusuki servants
& not a coincidence, there’s a meeting about Urashiki in the same episode
Maybe this Mitsuki arc will be interesting