Ataru couldn't really enjoy his newlywed life, which should have been filled with everything. She did so because of her mother-in-law, Lina, who lives with her. From her body, facial expressions, and casual gestures, Lina exudes her luscious sex appeal, and Ataru is always disturbed. During her life together, her feelings grow more and more. Before long, Ataru was so fascinated by Lina that even her wife couldn't see it, and her feelings were out of control to the extent that she crossed a line that was unforgivable.
