Mother's best friend

Even though it was pissed that her parents were traveling outside of her, Hiroshi felt terrible when he heard that a stranger would take care of her during that time. My aunt is my mother's old best friend. I had assumed that she must be a demon old lady since she is close to her mother, but the one who came was the stunning beauty Rei. Although he wanted to somehow deepen his relationship with Reina, Hiroshi, who is a virgin and doesn't even know how to seduce women, manages to stop Kareina by lying in an obvious way...