Double Fake - Under the Gundam

Double Fake: Under the Gundam
ダブルフェイク アンダー・ザ・ガンダム

Main Story

Char's Counterattack (TOKITA Kouichi)
Kidou Senshi Gundam: Gyakushuu no Char· 機動戦士ガンダム 逆襲のシャア
manga

U.C. 0093 - Char Aznable, the infamous "Red Comet" of the One Year War, has come out of hiding to lead the Neo-Zeon Army and wage war against the Earth Federation. Only his greatest rival, Gundam pilot Amuro Ray, can stop him from dropping the Axis asteroid on Earth and causing a major global catastrophe. (Source: Anime News Network)

Prequel

Gundam ZZ
Kidou Senshi Gundam ZZ· 機動戦士ガンダムZZ
manga

The Axis, which was supposed to have been struck by Camille, is still alive! Our new hero, Judau Ashta, gets into the super mobile suit "ZZ Gundam" and fights against them!

Sequel

Mobile Suit Gundam: Almarya
Kidou Senshi Gunda Almarya· 機動戦士ガンダム アルマリア
manga

Set in the Universal Century 0179.

Sequel

Mobile Suit Gundam: Char's Counterattack - Beltorchika's Children
Kidou Senshi Gundam: Gyakushuu no Char - Beltorchika's Children· 機動戦士ガンダム 逆襲のシャア ベルトーチカ・チルドレン
manga

In U.C. 0093, Char Aznable returns as leader of Neo Zeon, and is determined to drop the asteroid base Axis on Earth. Opposing him is the task-force Londo Bell, led by Amuro Ray and his Gundam. The final battle will take place over the Earth Sphere. (Source: Gundam Wikia)