Based on the information present in the given passage, you need to write a correct answer to the given question. A correct answer is one that correctly and completely answers the question. Do not write answers that address the question partially or incorrectly. The correct answer must be contained in the given paragraph.

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: Who is Juzo Murasaki's supervisor at his construction job?.
Turo Akai.