Company DQ announced Devil x Devil by Sachiyo Sawauchi.
There are a couple of stories in here, but the main one is about a devil named Hotei and a fallen angel Suzaku. Hotei is a runt among devils who even has a hard time transforming into human. Suzaku always picks on him for that.
One day, Hotei finds a way to transform into a young boy, and decides to have revenge against Suzaku.