High School DxD EX

Short stories bundled with the first press release of the Blu-Ray/DVD volumes of the High School DxD BorN anime. The Occult Research Club faces off against mysterious invaders known as Underworld Lifeforms who have appeared from beyond their world. These unexpected visitors bring with them strange powers and unknown intentions, forcing the club members to confront challenges unlike any they've faced before. As tensions rise, the boundaries between past, present, and future begin to blur, leading to encounters that will test the bonds between the club members and reveal new dimensions to their world. (Source: highschooldxd.wikia)