Machimura Erika

A naive, caring older sister

The eldest of three sisters raised in a wealthy family, she is a second-year university student.

She began living alone in Hebigahara City to prepare for college.

She has the caring nature of an eldest daughter, is well-liked by everyone, and is fearless, giving people she meets a calm impression.

She attended an all-girls school before entering university, and has never had any experience with men or dated anyone. She sees Tomoya, her first tutor, as a younger brother, and is enjoying the pseudo-brother-sister atmosphere she has never experienced before.