Reborn in 80, I Will No Longer Sign as a Blood Pack. He Panics.

The female protagonist was reborn. In her previous life, she had a crush on the male protagonist and donated bone marrow to his mother. However, her nutrition failed to keep up and she was infertile. The male protagonist said he was grateful to her and married her. As a result, she worked hard to make money to help them pay off their debts, support the male protagonist in college, and finally helped him raise his illegitimate daughter, but in the end she was thrown next to the trash can. After rebirth, she will no longer donate bone marrow...