A bond that was so tangled that it couldn't be undone in their life time so MC swears to change it in another life time. She dies... she gets re-do to fulfill her promise 😎
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.
Isekai Yakkyoku