action adventure alien aliens artificial intelligence comedy crossdressing earth ecchi future japan kuudere maid mecha new original work pantsu piloted robot robot sci fi sci-fi science fiction science-fiction seinen shounen slapstick small breasts super robot super robots transforming craft violent retribution for accidental infringement war
Rating: 6.36
Chōjūshin Gravion, Gravion, Super Gravity God Gravion, Super Heavy God Gravion, ちょうじゅうしんぐらびおん, 超重神GRAVION, 超重神グラヴィオン
The year is now 2041 AD. A new enemy called Zeravire suddenly appears in the solar system, destroying all military installations it comes across. However, a wealthy man named Klein Sandman is already aware of this planned invasion and had been secretly preparing his army for battle. His trump card is Gravion, a giant robot that utilizes gravity as its source of energy. Meanwhile a young man named Eiji secretly enters Sandman'