>>713331330
It's a little complicated if you want to get into Tenchi. Because the manga is part of an ongoing narrative that encompasses Manga/Anime/Light Novels/Hentai (Yes, seriously).
Masquerade Trilogy (Hentai) > Dual! Parallel Trouble Adventure > Photon: The Idiot Adventures > Spaceship Agga Ruter (Hentai) > Ryo-ohki OVA1 > The Night Before Carnival > Mihoshi Special > Ryo-ohki OVA2 > True Tenchi Muyo! (Manga) > Ryo-ohki OVA3 > Final Confrontations > Ryo-ohki OVA4 > GXP > True Tenchi Muyo! GXP (Light Novel, ongoing) > Tenchi Muyo! GXP Paradise Starting > Tenchi Muyo! GXP Paradise War (Light Novel) > Ryo-ohki OVA5 > War on Geminar

https://mangadex.org/title/1d928deb-fda2-4a1f-9e42-fa53698820eb/tenchi-muyo-ryo-ohki