Infinity in the Void - Freedom in the Abyss:
Charlotte Silvi, she like big tits and want big tits, but genetics gave her the middle finger. So she do whatever she like and whatever she want in hope of having big booby. From being a bitch because bitches often have big tits, to being the archetype of oujo-sama because they always have big tits.
Follow her adventure in hope of gaining big boobs, meeting people like, Actually Satan (who adopted her), genderbend Mussolini, a vampire that speaks tree, a cat that can destroy the world, a lesbian yangire samurai girl (she got better tho), a psychopath of a sister (who fiancee is Kratos from the hit game God of War), dollar store Otto Apocalypse, a calm and peaceful Fallen Angel of Rage. Would she gain big boobies by the end of the series?
Who fucking knows! Not even me, the fucking author!
(Charlotte is always over the top with whatever she does, so there is only one small detail that is pretty irrelevent to the story as a whole.)