Single release from Larval Stage Planning is the OP for the anime series High School DxD. Titled Trip -innocent of D-, it would be out on 25 January 2012. Only a Regular Edition release for preorder.

Track-listing of Trip -innocent of D-

1. Trip -innocent of D-
2. Chapter.5
3. Trip -innocent of D- [Instrumental Ver.]
4. Chapter.5 [Instrumental Ver.]

Single Title: Trip -innocent of D-
Catalog Number: LACM-4894
Release Date: 25 January 2012
Retail Price: 1,200 yen
Preorder at: CDJapan

This is the 2nd single release from them. The 1st single was the OP for Baka to Test to Shoukanjuu Ni!