Thrilling, Raging Newspaper Reporter痛快あばれブン屋; Tsuukai Abare Bun-ya

(from ebookjapan): Fumiya Saotome, a reporter in the Akatsuki Shimbun's sociology department, is an unbelievably violent man. He will wield both pen and arm to the fullest for the sake of social justice. He chases after a hit-and-run case, and ends up with the son of a deputy. He was paid 100 million yen to keep his mouth shut. He is furious, and his money will not sell him out!