Kei x Yaku: Abunai Aibou

Ichiro, a dedicated investigator with the Tokyo Metropolitan Police Department's Public Security Bureau, is assigned a delicate and dangerous mission: to infiltrate the underworld by monitoring Shiro, a charismatic yakuza who leverages his intimate relationships with high-ranking politicians to build influence. Operating under the constant scrutiny of his superior, Ichiro's investigation takes an unforeseen turn when he discovers that his target is actually the younger brother of his own missing senior investigator—a man whose mysterious disappearance has haunted Ichiro for years. Bound by this shocking connection, Ichiro and Shiro forge a precarious secret alliance, determined to unravel the truth behind the senior investigator's vanishing. To maintain their fragile partnership and outmaneuver the watchful eyes of the police and the underworld alike, they adopt a perilous ruse: playing the roles of devoted lovers. As they walk this tightrope of deception, the two men must navigate a treacherous landscape of loyalty, hidden agendas, and escalating danger, all while inching closer to a truth that could destroy them both.