Aru Hi: H.D.A.
H.D.A / Kidou Senshi Gundam: Aru Hi - H.D.A. / Mobile Suit Gundam: Aru Hi - H.D.A. / Mobile Suit Gundam: One Day - H.D.A. / One Day: Haman's Daily Affair / One Day: Haman's Daily Affair, H.D.A / One Day: Haman's Deleted Affair / Мобильный Воин Гандам: Утерянное дело Хаман / 或る日 -H.D.A.- / 機動戦士ガンダム 或る日 -H.D.A.-
Completed Released: 2002
A prequel to C.D.A. Wakaki Suisei no Shouzou, detailing a day in the life of younger Haman Karn and her first meeting with Mashymre Cello during her stay at Axis.