Des：Ayano has raised her son Kei single-handedly. Kei asks, ``Mom, wont you get a new boyfriend? she asks innocently. Although she says, ``Its not necessary, Ayano, who is still in her prime, spends her days alone comforting him. One day, Ayano discovers a large amount of used tissues in Keis room. Ayano was at a loss for words at the unusual amount of sperm, but she had no way of knowing that this large amount of semen was released thinking of her mother. Her distorted feelings towards Keis mother were on the verge of exploding...