Kumo ni Noru
Japanese title: 雲にのる
Type: OVA
Source: Manga
Episodes: 2
Status: Finished Airing
Aired: Mar 8, 1991 to Jun 7, 1991
Duration: 51 min per ep
Rating: R+ - Mild Nudity
Studios: J.C.Staff
Genres: Action
Demographics: Seinen

In a Buddhist heaven where saints fight over turf in the clouds, Nio-maru searches for the younger sister torn from him in an aircraft accident back in the human world. 

(Source: The Anime Encyclopedia)