My nephew Satoshi has to stay at his aunt's house to take the entrance exam. However, he becomes conscious of his aunt, who is as beautiful as ever and who treats her with the same friendly nature as a friend, and is unable to get involved in her studies at all. Then, Satoshi is chided for such an attitude and accidentally lets slip that she is actually still a virgin. Oh, that's a lie! It's so sad that you're still a virgin! So...I'll help you graduate (lol)