Dragon Knight Gaiden
Japanese title: ドラゴンナイト外伝
Type: OVA
Source: Visual novel
Episodes: 1
Status: Finished Airing
Aired: Feb 25, 1995
Duration: 47 min
Rating: Rx - Hentai
Studios: Arms
Producers: All Products
Licensors: ADV Films, SoftCel Pictures
Genres: Action, Fantasy, Hentai
Themes: Mythology

Takeru meets the boy Jodis which is in trouble for theft. Takeru saves him shares the night with him, finding out that Jodis is a girl. Later she is been kidnapped and Takeru goes to rescue her. 

(Source: AniDB)