In the Heavenly Prison, the Devil Enchants Me, Vol. 1 - Meteor Gingami

The diminutive Kaoru Shabana has been coddled his whole life, and he yearns to stand tall as a proper adult--a true man among men. So when he's invited to the remote and prestigious Kibujima Academy, he leaps at the chance to make it on his own, unaware that the school of his dreams is actually a nest of lust-devouring succubi!Targeted by the voluptuous devil Kanra, can Kaoru resist her charms and escape from this heavenly prison, or will he and his friends fall to temptation and be sucked dry...?!