Bengoshi Onii-chan to Himitsu no Asobi

Mei, a pastry chef, has a longtime crush on her step-brother, Akira, a lawyer. Akira is smart, fresh, and good at his job. One day her house catches fire and she is asked to stay at his house! When Mei says she loves someone else, Akira offers to give her a lesson in love..! Forbidden love between step-brother and step-sister -- the pounding, doting love lesson begins!