Tenchi Muyou! Ryououki 4th Season
Japanese title: 天地無用！魎皇鬼 第四期
Alternative titles: Tenchi Muyo! Ryo-Ohki 4th Season
Type: OVA
Source: Original
Episodes: 4
Status: Finished Airing
Aired: Nov 30, 2016 to Sep 13, 2017
Duration: 29 min per ep
Rating: PG-13 - Teens 13 or older
Studios: AIC, C2C
Producers: Pony Canyon Enterprises, AIC RIGHTS, Youku
Genres: Action, Comedy, Sci-Fi
Themes: Harem, Space

The entire Jurai and Masaki family is in a celebratory mood as Nobuyuki and Rea are finally tying the knot! In the days leading up to his father's wedding, Tenchi reunites with those he met throughout his journey as well as gets acquainted with some new family members. Though this is a blissful time where everyone is finally together, there is one major bump in the road: Rea holds a major secret that will change the fate of her future child and disturb the balance of the Masaki family. 

[Written by MAL Rewrite]