Iihara Nao

Her breasts have grown even more than in the previous work, and she has a mature and sexy look.

She and Mitsugu are best friends and always work together. She has a calm personality (easy-going and quite stupid), but she is a little jealous.

She loves Daisuke and is always competing with Mitsugu for Daisuke. As she becomes more and more absorbed in sex with Daisuke, she gradually begins to seek out more and more abnormal activities.