yes he made a deal with his uncle. but the deal is to look for his brother during the remaining 2 months, and the uncle told him he could do the work as a special member of the organization, but the mc refuses that saying he wants a new identity that no one knows. and with the new identity he would go and look for his brother, and also contact his uncle to report the progress of the search from time to time.
And once the 2 months time ends, he would go back home ( his brother found or not )