同名人気マンガの映画化。南野陽子が女学校を出たばかりのおてんばなハイカラ娘をいきいきと好演。大正ロマンも華やかな、恋と冒険の青春映画。南野の恋人の少尉役は、当時『メンズ・ノンノ』で大人気の男性モデルだった阿部寛が演じている。
Elya, 20, is a student and a future ecologist. One day, Matvey, the head of a construction company, came to her university to discuss the development plan for an old forest park. Elya did not hesitate to crush his project. Matvey is very interested in girls' confidence, And used his usual influence method - he just tried to ; purchase She, but Elya doesn't need a sponsor. Then, Matvey was surprised by her indestructibility and placed a bet on Elya: romantic seven days according to his rules. If the girl still decides to leave after that, he will refuse to build a skyscraper in the forest park. When Matvey really paused design work, she agreed. Elya thinks she's a bit like the movie 'Beautiful Woman' The female protagonist in, but it turns out that Matvey is not the person she imagined.
