Marmalade Boy: The Family Grows.
It is without doubt the best series of my childhood.
Anyone who has seen it will have been touched and have felt in his own skin as they feel the two protagonists: Miki and Yu, two young people who have a love / hate and they also have to live together.
It's a fantastic love story, with humor and above all enhance the value of friendship above all things.
It's just great! :)