It was a reverse harem manga, at least 3or 4 years old. There were 5 guys (id i remember corectly) the main one was a tall ... i wanna say brunet guy. But everyone of thrm is filthy rich. And the girl is not. But there is one chapter where they have to go in a building and they use a helicopter to go in. Another this I remember is that one of them, a short blonde one with spiky-ish hair, is in a limo (i think ) with the girl and he gives her a key chain or a stuffed bear. A bear design that was very popular and he tells her that he is the designer of that bear and she is amazed.