Gah, a truly heart rending anime that plays with the sensitive relationship between brother and sister. Ore no Imouto is about a brother and sister rekindling their dissolving relationship. The typical big brother character and his seemingly unappreciative sister. I personally believe that this show is extremely underrated. The characters are extremely likable, and if you have a sibling you can probably relate on a personal level to this show. Give it a go if you enjoy a well-written story and wonderful character to character development.