Kamisama☆Darling 

University student Satake Aoi wakes up rolled up in a red string and with a stranger inside his house that says he's a god. Aoi scapes, but something is... different... He's now extremely popular and everybody's fighting for his attention. What's the relation between these events and some promise he made with the man that calls himself the god Ookuninushi-no-mikoto and what will happen from now on? Note: Includes seven extra chapters.