These kinda stuff get me. When a shitty ML regrets treating the protagonist wrong. I love seeing the person suffer and recall all the warm memories and how they destroyed it with their very own hands, how they threw the protagonist's love into trash, how they tortured them mentally and physically... I just love a good regret story to cry to.
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.
The Horizon