magnum's manga / #Step-Brothers(2)

The Inheritance of Aroma

Complete | NAKAMURA Asumiko | 2008 released

Child of mistress moves in to rich family home, meeting his new brother for the first time. His "brother" tells him not to touch the door or enter because he will taint it. The dynamic between the brothers develops into a twisted love story between the two, initiated after the mistress's child has sex with him disguised as the wife of his brother.