Paragraph- Sent 1: Juzo Murasaki arrives at a work construction area to take on his new job as a construction worker .
Sent 2: To his quiet dismay , his supervising boss turns out to be Toru Akai , who with his gang had made Juzo 's middle school life a living hell .
Sent 3: Akai , however , does n't recognize Juzo .
Sent 4: Juzo 's more disconcerted when he discovers that Akai lives with his wife , Nozomi Akai and their toddler son above Juzo 's new apartment .
Sent 5: As Juzo emotionally struggles to handle these unexpected developments , a mysterious and seemingly malicious hooded figure appears .
Sent 6: It calls itself Number 13 .
Sent 7: As Juzo attempts to control increasing number of flashbacks and a spiral fall into psychological darkness , Akai constantly picks on Juzo and other work colleagues including Seki Hajime , a former middle school student who becomes Juzo 's casual friend in spite of Juzo 's anti-social tendencies , at work .
Sent 8: Meanwhile Akai 's wife , Nozomi , attempts to make friends with Juzo and entrusting the care of her toddler son to Juzo .
Sent 9: She proudly shows Juzo her husband 's school photos .
Sent 10: In one class photo , Juzo 's space is marked with an X to show he was absent .
Sent 11: Juzo suffers a severe flashback to explain his absence that day : in their school 's science room , Akai and his friends have thrown acid at Juzo 's face .
Sent 12: Seki becomes suspicious about Juzo 's increasingly odd behavior and goes to inform Arai at the work site , but Arai dismisses him without giving him a chance to speak .
Sent 13: During this incident , Seki does n't realize he 's being watched by Number 13 , but as soon as he does , Number 13 kills him . 
Question: What did a mysterious and seemingly malicious hooded figure calls itself? 
Incorrect Answer: Number 13.