Kumo ni Noru
Genres: Action
Type: OVA, Episodes: 2
Aired: Mar 8, 1991 to Jun 7, 1991
Studio: J.C.Staff
Source: Manga
Rating: R+ - Mild Nudity
Synopsis:
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)