It’s only really assault if he’s a bad guy
This week, Black Bird and Black Rose Alice have a common thread, other than the word “black” in their titles: the presence of a villain.
In Black Bird, Misao is assaulted by Sho’s older brother, who acts with the intention of raping then murdering her to gain leadership of his clan; in Black Rose Alice, Alice’s former student and victim lover finds her and turns into a full-blown stalker after become obsessed with finding the connection between his dead rapist girlfriend and this mysterious foreigner. Their actions aren’t too far off from the romantic leads, but since they intend to harm rather than show their “passion”, they’re shown in a negative light. Sho specifically comments that, despite his sense of competition with Kyo, he was never able to fall in love with Misao. So while both seek to control Misao, Sho’s lack of love makes him inexcusable.