Akari Tsumugi lives alone in a house in Tokyo. She works in an office job here and has been away from her family for a long time. Today, my stepfather went to see a doctor so he stopped by Akari's house to stay overnight. Seeing his beautiful daughter after not seeing her for a few years, he started to get angry. Having sleeping pills in his pocket, he put them in Akari's drinking water, causing her to sleep soundly that night without knowing anything. In the middle of the night, he started to sneak into her room, gently tied her hands and started stimulating her with his naughty tongue. Akari leaked and started to get excited. Even though when she woke up she knew her father was committing incest, she couldn't resist.