THE DEVIL WITHIN (Tenshi no Naka ni Akuma Ari), by Ryo Takagi. First published in 2003 and first published in North America in 2007.
PLOT:
Rion knows two things for certain: grown men are nothing but devils, while young boys are nothing but pure, beautiful angels. A childhood trauma led her to this conclusion, and ever since she can only find herself attracted to pre-pubescent boys. This throws a wrench in her father's business plans, as he's determined to marry her to one of three teenaged heirs for his benefit. Neither the boys nor Rion's father care about getting her consent on the matter - they're just determined to profit from the connections. All the while, Rion pines for the angelic-looking boy in the apartment below hers even as he abuses her verbally at every turn. Soon Rion discovers that there's more than just a business deal at stake with her choice of husband and that her choices may have divine implications.
