Love Hina

Two kids make a promise to each other, to get into Tokyo University together. Years later, one of those kids, Urishima Keitaro, has made that promise his dream. He's determined to get into Tokyo U despite failing twice. He leaves home to live at his grandmothers Inn so he can study and pass the entrance exam next year. What he doesn't know is that the Inn is now an all girls dormitory and in a short series of accidents manages to get on the bad side of all the residents. Luckily his Aunt sticks up for him and he is able to secure a job as manager. Keitaro meets a girl there that just might be the one he made the promise to so long ago. This series follows Keitaro on his quest for Tokyo U with the girl of his promise and dreams.