Nonton Isekai No Seikishi Monogatari Sub Indo [ Free Access ]

Kenshi Masaki (the half-brother of Tenchi Masaki from the Tenchi Muyo! series) is suddenly transported to a fantasy world called Geminar . In this world, humans and other races use giant humanoid machines called "Seikishi" (Sacred Mechanized Weapons) for warfare and politics.

The story you're referring to is (also known as Tenchi Muyo! War on Geminar ). Here’s a concise summary for someone looking to watch it with Indonesian subtitles ("Sub Indo"):

Would you like a character list or episode guide next?