【Nedaore】I was reincarnated as a female hero, and I heard that I have five wives from the demon tribe 4

This is the fourth installment of [Apparently there are five demon wives when you reincarnate as a female hero].
When Reiko (a virgin) wakes up, she is reincarnated into the body of a hero in another world, and is told to become a hero and have sex with his five wives.

This time, Reiko and Marielia, the former general of the Immortal Demon Army, decide to have conjugal sex. When Reiko hears that Marielia is a necromancer, she goes to see her with a prejudice that she must have some strange sexual habits.

But Marielia and Reiko have something unexpected in common, and they hit it off, and soon …….

Who was the real monster?

A comedy yuri erotic manga.