「────I want you to relinquish parental custody."

The protagonist, divorcing due to her husband's infidelity, was told this during their divorce negotiations.

Though she naturally objected,

" 'It's pitiful for a child to have only one parent,' "

" 'Can you really support our child with your earnings, having been a full-time housewife?' "

she was told, and she reluctantly agreed.

She also made significant concessions on alimony and property division for the sake of her child.

From then on, the protagonist dedicated herself relentlessly to work, but... one day, she was reunited with her child!?

It was then that her husband's lies and secrets were exposed, filling her with rage!

Without hesitation, she went to confront her husband and his associates, but... she was then told an even greater truth!?

Overwhelmed by sorrow and regret, the protagonist earnestly wished, "I want to go back to the past..."

Just then, a strange email arrived: "Wouldn't you like to reverse time?"

Clutching at straws, she replied, and to her utter astonishment, successfully reversed time!

"────Custody, alimony, and property division... This time, I won't concede a single thing!"