*Ruby Kim, a famous Korean idol, has two children: her eldest son, Thalric, and her two-year-old daughter, Jennie. After Ruby remarries and gives birth to Jennie, Thalric believes his mother has replaced him with her new family. Feeling abandoned, he becomes cold, disrespectful, and refuses to acknowledge Ruby's love, even calling her by her name instead of "Mom."

Despite his hurtful behavior, Ruby never stops loving him. She continues to cook his favorite meals, waits for him to come home every night, and silently cries over the distance between them. Little Jennie innocently looks up to her older brother, but Thalric keeps his distance because she reminds him of the life he thinks stole his mother's love.

Unknown to Thalric, Ruby loves him deeply and treasures him as her firstborn. Every night, she prays that one day he will realize she has never stopped loving him.

Tonight night she still waited by the window until he returned safely. When she heard the front door open at two in the morning, relief filled her eyes.

"You're home..."