Masaru couldn't help but notice how attractive his mother was after hearing a friend remark about her beauty. One night, while his father refused her advances, Miho became so aroused that she masturbated right next to him. Intrigued by this unexpected turn of events, Masaru watched his mother pleasure herself, further fueling his desire for her. As soon as his father left on a business trip, Masaru confessed his feelings multiple times to Miho. Filled with lust and longing, he eagerly anticipated their intimate encounter under the same roof when his father returned home.