Mrs. Gallagher receives a massive relocation payout and plans to split it between her two biological sons. But Mr. Henderson warns that her sons may not be truly devoted, unlike her adopted girl. He suggests testing their loyalty. The test proves her sons are greedy, while her adopted eldest girl is genuinely loving. Yet, clinging to the traditional belief of raising sons as a retirement plan, Mrs. Gallagher gives the payout to her sons and rotates living with them. Her daughter graciously accepts this. However, Mrs. Gallagher faces severe mistreatment from her sons and daughters-in-law, and it is the eldest girl who defends her every time. Through these ordeals, she gradually realizes that raising sons as a retirement plan is no guarantee. Blood isn't the only family bond, and only a grateful heart deserves true devotion...