Happy Breeding

Happy Breeding (DC) also known as Happy Breeding: Cheerful Party (PS2) is a non-adult console port of a Happy Breeding adult visual novel for PC (Windows). While the original game had voice-acting, the console ports changed voice-actresses for some of the heroines. The story revolves around Takashi, who just started living on his own recently. One day, he finds a strange looking girl in his house and ends up living together, seeing how the house was too big for one person and all.