If Kousuke was honest with himself, he had expected to receive a confrontation with Mr. Kawata. The latter had already uncovered Detective Otake's activities in Kaagawa City that involved Heisuke.
Even though Kousuke had sent the private investigator to another faraway place to lay low, the action was not absolute.
"No wonder you're interested in Heisuke when you're here before. I'd never thought that both of you were related. But, the past is the past. Don't bother Heisuke and his mother ever again."
Mr. Kawata ended the call with a threat. The friendliness that was always imbued in his actions and voice was nowhere to be heard. He was really serious about putting Kousuke in his place.
Kaagawa City was the place where the Kawata family held the most power. Their name was on par with the other old money families from the same prefecture. The Kawata family history ran deep even before the last war a few decades ago.