Manga by author Tachibana Roku - Status completed

Inugami Tsubaki is the perfect girl and has her future perfectly planned: she's beautiful, smart, skilled in sports and loved by everyone. As the future head of the most powerful financial clan of Japan, it seems nothing can stop her. However, in her first day of high school, she mets Sarutobi Sanosuke, a wicked guy who outsmarts her and quickly becomes her enemy - what's going to happen between them?