I picked up an angel on my way to school and now she spoils me rotten

Ayanokouji Kiyotaka didn't know what to expect beyond those white walls. However he was sure that angels are not supposed to be on earth. Basically a crossover between Classroom of the elite and The angel next door spoils me rotten.
I don't own Classroom of the elite, all the credits goes to the author Syougo Kinugasa.
I don't own The angel next door spoils me rotten, all the credits goes to the author Saekisan.