Go to the university school and hit on hot chicks there get to know them and fight them. Your objective is to date as many of the Love Hina girls as you can. The game will end when you have successfully reach the highest level of romance with one or more of the girls, or if you reach 100 days which means you FAILED.
Hints: You have to go to school, taking fighting lessons, and more to be able to reach new levels of romances between you and the girls ;) You can learn cheats and secrets hidden throughout the game!