Heroine Tenjin Shima is a manager of the lingerie shop, but on the behind this is a private investigation organization. One day a request is received from the National University to find the professor missing for a week already. All that's known is that professor was interested in excavation of an ancient civilization and searched for a hidden treasure.

Heroine Tenjin Shima is a manager of the lingerie shop, but on the behind this is a private investigation organization. One day a request is received from the National University to find the professor missing for a week already. All that's known is that professor was interested in excavation of an ancient civilization and searched for a hidden treasure.