envious is very dangerous, it could blind you to the point you see nothing beyond your own self, and push you even go and hurt the ones who love you. Even worst is bad parenting causing this (it leaves a scorch in your heart and soul from just witnessing something like this happens. *so please calm my soul*)
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.
Ibitsu no Kakera