A virgin brother who lives with his sister. One day, when my brother looked into his sister's room, who had slept earlier, he saw his sister masturbating with a whispering pen. After that, my brother starts to have naughty dreams. A dream in which the older brother blames him with a toy, and a younger sister slowly licks his brother's cock in the bathroom... a dream. A sister in pajamas appears in front of the older brother who wakes up from such a dream, and the two finally get married. My sister screamed while being poked violently. "Onii-chan, put it inside!"