Kidou Senshi Gundam U.C.0094: Across the Sky
Mobile Suit Gundam U.C.0094: Across the Sky
機動戦士ガンダム U.C.0094 アクロス・ザ・スカイ
Mobile Suit Gundam U.C. 0094: Across The Sky is a manga illustrated by Katsumoku, and officially launched in the December issue of magazine series Gundam Ace.
(Source: Gundam Wikia)