Saint Beast: Ikusen no Hiru to Yoru-hen
Japanese title: セイント・ビースト～幾千の昼と夜 編～
Type: OVA
Source: Mixed media
Episodes: 2
Status: Finished Airing
Aired: Dec 17, 2005 to Mar 18, 2006
Duration: 25 min per ep
Rating: PG-13 - Teens 13 or older
Studios: Madhouse
Producers: Lantis, Tokyo Kids
Genres: Fantasy

Long ago there was a war in Heaven which resulted in Judas and Luca – two of the six specially-chosen, talented and strong Saint Beasts – being cast out and imprisoned in Hell for leading the rebellion. But before that Heaven had been a peaceful place where the angels happily lived their lives. In this time, Judas, Luca, Goh, Shin, Rey and Gai are adolescent angels in Heaven who, on the day of Benediction, are made into adults by the supreme god Zeus. With each of the six having their own special abilities and new adult bodies to get used to, opportunities to meet each other arise and new friendships are formed. 

(Source: Anivide)