Taking place at a remote laboratory in the year 19XX, a three-staff research team consisting of Dr. Knavik and his assistants the sisters Cecile and Lucia is studying the exploration and usage of ESP. One day while Lucia was getting ready for work, an explosion burst from the lab. By the time she Lucia got to the lab, Dr. Knavik was all right, but Cecile had disappeared. Dr. Knavik explains that part of his experiments involved running tests on a variety of monsters, but eventually the subjects rebelled and took Cecile with them. As Lucia follows the monster's track, Dr. Knavik gives her the ESP Booster, a device he created that will enable the user to wield psychic powers. Source: Wikipedia, "Psychic World", available under the CC-BY-SA License.