He left it to gaurd the last roran survivors I'm pretty sure.
Now, this is where the main problem starts, half of his chakra is already being used to keep the Kazekage puppet activated all time and if he divides the remaining half to leave a Shadow Clone behind, then Kuroto isn't even sure whether he will have enough Chakra left to successfully break the seal applied by Yondaime-Sama on the Dragon Vein.
Anime & Comics · Alex_Clive
It's gonna end up being Yui, isn't it?
Even Kuroto pondered a little, 'Who could it be?'
Reborn into Naruto World with Tenseigan
Anime & Comics · Alex_Clive