Flat is justice! This is the rallying cry of everyone who appreciates flat chested anime characters. Though many flat chested anime girls lack confidence in their own assets, the fans often feel otherwise - they find them cute and appealing because of rather than in spite of their small breasts. There are also some flat anime girls, like Mayumi Thyme of Shuffle and Konata Izumi of Lucky Star, who believe that their modest endowments make them special.
Let's celebrate these flat chested anime girls!
Kyoka Jirou is a hero-in-training whose small chest leads her to be ignored by the class pervert, Mineta. This is probably a blessing in disguise.
Taiga Aisaka is more concerned with her short stature than her chest size. The taller and bustier Ami makes fun of her for both, and she happily returns the insults.
Mikoto Mikasa possesses incredible electrical powers, but she's sometimes less focused on her talents than on her cup size - she gets anxious about having small breasts and compares herself negatively with her bustier friends.
Rukia Kuchiki is much too busy working for Soul Society to worry about ridiculous things like her cup size. Also, with her small frame, a flat chest will help her avoid back problems.