In the Barairo no Giwaku series:

1. Bara no Tameiki

Gaby is an immigration lawyer in the city of San Diego. One fateful day, an array of seemingly random incidents happen and suddenly she finds herself face-to-face with Anatoly, a member of the Russian mafia. With her instincts screaming at her to stay as far away from him as possible and her heart fluttering at the sight of him, Gaby is confused as to what she should do when Anatoly makes his feelings known to her.

2. Benibara no Shirayukihime

Heidi Ellis is on a mission to save her friend Dana, who's been wrongfully incarcerated for murder. With that goal in mind, Heidi enrolls in a criminology course taught by a retired detective. A twist of fate leaves Heidi in the hands of the attractive substitute teacher and much younger detective, Gideon Poletti.