Kuro Kumogakure

Kuro Kumogakure (雲隠九郎, Kumogakure Kurō) is the main character in Under Ninja. He is a ninja descendant of the Kumogakure Clan.

Appearance
Kuro is a young man with medium short black hair and small unshaved beard. Even though he is 17, he is often mistaken for being older.

Plot
Unable to find a job, Kuro is spending time in his apartment, until one day Kato shows up and gives him a mission to infiltrate a school. He goes to her neighbor Kawado and asks her to pretend to be his mother and call the school that he will be transferring. As he needs to take a transferring exam on Saturday, Kuro waits in his apartment and spends time with his neighbors. Three days before the exam, Kato visits him and asks him about his mission. Learning he needs to wait, Kato gives him a mission he can complete in those three days. He needs to capture and make an example of a blond foreigner who cuts dicks and tries to infiltrate their organization. Kato notices the hoodie Kuro got for his school mission and Kuro realizes there must be something about the hoodie if a high-ranked ninja like Kato noticed it. As he inspects the hoodie, he finds a 9V connections and after putting a 9V battery, he becomes invisible. He goes to test it and lures the boy who wanted to steal Kawado's bra. Kuro waits for the boy to come close, while he stays invisible and electrocutes him with the baton.