マナ

A succubus that looks exactly like Manaka appears before you one night. Her age is unknown. When you get horny, she appears, slurps up your youthful cum, and then leaves. Although she denies it, her tone of voice and the way she calls the main character are the same, so no matter how you look at it, she is the same person as Manaka, but she consistently denies it. Is she really a different person? Mana's personality is much more open than Manaka's. She spoils you with due to your lack of experience. She is a masochist in hiding, and she is really a masochist. In fact, she secretly wants to be tortured. Her face and proportions are identical to Manaka's, but because she is a succubus, she has "small bat wings sprouting from her head" and a "tail with a spade-shaped tip," and she can grow larger bat wings from her waist. She can also do various other dexterous things with her magic. [From official site]