[Machine Translation] ( Men's sexuality ) has been consumed with words such as eroticism and unattractive and unattractive, and has never been discussed seriously. Perhaps because of this, people think that sexual desire is never-ending and that men are eager to have sex, but are all men really that erotic? In order to answer such questions, we will reconsider from the fundamental point of view such themes as ( ejaculation ) ( masturbation ) ( virginity ) ( first experience ) ( love ) ( sex and entertainment ) ( marriage ) that are on everyone's mind. This is a book that should be read before getting bogged down in sexual issues. Women can also understand the true feelings of men with this book!