A new game called "LuvSlave" is currently being played in Japan, where boys who are experiencing sexual desire participate in a secret game. The game involves the boys making a slave contract with an older girl and playing against each other in a card battle game. The master (boy) is able to order his slave (older girl) to use lewd outfits or techniques and if the slave agrees, these actions can be performed. Ultimately, the game aims to test the love between master and slave. Currently, the love between the boys and their partners in the game is intensifying.