*Koromaru seems excited at Mitsuru's suggestion...! Until he notices the other dog. He faces the alternate Koromaru warily...
rr...
*Koro seems suspicious, as if the other dog might be a shadow. He's seen other people's shadows on occasion. Yet...
woof...?
*Koromaru doesn't seem to sense anything from the other Koromaru, thinking perhaps he's not a shadow. It doesn't explain how there's TWO of him, but...
arf!
*Koromaru comes closer, sniffing and inspecting the other Koro curiously. He really doesn't seem to notice anything off about the other dog...