plot is that in a past life they were married and he treated ml so badly so he's redeeming himself in this life but the ml doesn't know they were married in a past life and has nightmares and insomnia of his previous memories.
You may feel your favorite manga should be gathered together into distinct categories for your own reference and, now, you can do this with a LIST. After you've created your list or lists, you can proudly recommend them to other manga fans to showcase and share your taste in manga.
Bitten by the Dog I Abandoned