“are you using protection?” kaho asked her daughter's boyfriend, tatsuya, who had come to play. as a mother wishing for her daughter's happiness, she wanted to warn the young man with excessive sexual desire. but tatsuya's reaction was subtle. “haven't you done it yet? tatsuya, are you maybe… a virgin?” he stammered and didn't deny it. his innocent reaction switched kaho's mode from mother to mischievous virgin killer. she whispered sweet words and pressed her body against him. kaho planned to deflower tatsuya, leaving her daughter aside.