Hot Gimmick was one of the first mangas I've read. It still remains a close favorite, and its the best from Miki Aihara. You are introduced to an apartment society complex where the women gossip and try to please the penthouse family. Hatsumi has a younger sister an adopted brother...and annoying neighbors. She's blackmailed into being the penthouse son's slave after he sees her buying a pregnancy test... The fact that its a blend of misunderstood characters, slutty teens, teenage issues, nerd fun, and the concept of "family" makes this series pure magic. PLUS the alternative book was a keeper in case you wanted to see how the "other" couple would've turned out.