It's a brotherxbrother relationship not related in blood. The older one can't stand woman or girl because of his past. And the younger one is a playboy. Well, i think they are actually love each other.
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.
Heart Silent