Welcome to the Fantasy!.Tatsuhiro deliberately searches for a job after learning that his allowance is cut in half. Ultimately, he decides to join a MMORPG called "Ultimate Fantasy" in order to make some cash by selling game items for real money. His obsession with the MMORPG deters him to slack off on his eroge scenarios with Kaoru, as well as to miss counseling sessions with Misaki. Meanwhile, on the MMORPG world called Vina Teelo, Tatsuhiro meets a catgirl called Mia, forming a party with her.