With Jutsu this, Sai more often uses it to do reconnaissance. He can draw black mice and send him to lurk in the opposing territory, unnoticed by his enemy.
He can also draw birds as aerial scouts, and will return to send important information related to his opponent. As the former Anbu, Sai can also control her existence as well as possible, so it is difficult to be detected by the opponent when he follows his enemy.
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