High School DxD DX.3 is a compilation that will consist of published short stories on various issues of Dragon Magazine. It is the third of the DX. series.
- Life.1 Precious of Asia
- Life.2 The Ordinary Days of Red Dragon Emperor
- Life.3 Let's Go with Training! ~Mascot Chapter~
- Life.4 Talents of the Student Council
- Life.5 Worldly Desire of Steel
- Extra Life.1 Cross×Crisis
- Extra Life.2 Graduation Trip and Vortex Bunch
- Worldly Desire of Steel was heavily influenced by the anime Gundam Build Fighters.
- The Dun-pla in the chapter are based on Danball Senki.