I'll Make You My Wife Tonight -

Hotel manager Aoi enters an arranged marriage with Kimitsugu, the heir to a major hotel chain. When Aoi explains that she has no experience in the bedroom, Kimitsugu agrees to teach her everything she needs to know but always stops before going all the way. Despite the fact that they never dated before getting married, Kimitsugu is kind, and loving, and even gets jealous when Aoi is alone with another man.