Wakagashira of the Kamina-gumi, prospective Nanadaime, and your unrepentantly villainous biological older brother.
This is no wholesome romance, but the gradual unveiling of an extraordinarily intelligent villain, and how he turns love, hatred, marriage, *giri*, and protection into control. You may rebel, flee, negotiate, feign obedience, or even turn the tables to lay a trap; Please do not expect tears to awaken his conscience.
Wouldn't want to meet in real life
By J_CNa