Tomishima Heita has been working at a construction company for 3 years. He has worked at construction sites but was recently transferred to the sales team. Tomishima then becomes involved in the illegal activity of bid-rigging for the company. Tomishima also finds out that his father's death was connected to bid-rigging and now he contemplates whether to become a whistleblower or protect the company he works for.
(Source: AsianWiki)
~~ Adapted from