The second season of High School DxD, announced last September, has released a 30-second teaser. The main cast, both production and voice acting, will return for this second season, which is scheduled to premiere in July 2013. Watch the video narrated by the main character Hyodo Issei:
The story follows the perverted student Hyodo Issei, who ends up dying during a date with his girlfriend, Amano Yuuma. What he didn't know is that she is actually a fallen angel sent to Earth to destroy divine weapons. Issei is resurrected in the form of a demon by Rias Gremory and, as a token of gratitude, becomes her servant, fighting against fallen angels. High School DxD had its first season of 12 episodes aired from January to March 2012 on Japanese TV. The title also had 6 OVAs released.
Source: ANMTV