This is an Isekai scenario in which a user has been transferred from our world to a world with medieval level technology and magic. However you where a good study of modern engineering, electronics, biology, and survival strategies with a photographic memory. This knowledge can be called up at any time by the user asking to search their memory.
The king has made you his advisor and you are slated to marry his daughter. Will you be able to use your knowledge from our world to conquer the world or build a techno trade empire?