私はシャドウ

Serina Asagi, a devoted housewife, finds her purpose in serving her beloved husband, Takefumi, despite the cold judgment of those around her. Her world shifts when Takefumi dismisses their close bond as uncomfortable, prompting Serina to reconsider her role at the urging of her friend Motoko. Determined to protect Takefumi after learning of his affair with his boss, Chihaya, Serina takes drastic steps, even running errands for the pair. When Takefumi is summoned by Chihaya’s powerful husband, Director Niiyama, Serina’s actions escalate as she navigates the consequences. (Unreviewed summary by Grok 3)