She's still a young wife with an innocent look, and it seems she's not at an age where she can be satisfied with just one man, so she goes out and has fun behind her husband's back. Despite her plain and quiet appearance, she has a slutty side, and she's the owner of lewd, sagging H-cup breasts, so there are a lot of gaps in her personality, which is what makes her so attractive, but she herself is completely unaware of it. Isn't it these kinds of defenseless girls that make them true femme fatales? That's what I think, anyway.