假面骑士龙骑外传

A comic-book artist meets a woman on the NY streets, but after a quick flirtation, she suddenly collapses, and is picked-up by an old ambulance. He checks all the hospitals in the area, but the woman seems to have disappeared.。《机动战士高达 THE ORIGIN》系列的第6作。继续讲述了因父亡故而变成孤儿的卡斯巴尔与阿尔黛西亚，在动荡大时代的洪流之中，面临的又一场人生巨变……标题中的“赤色彗星”便是夏亚·阿兹纳布尔的称号。由于夏亚的机体无论是扎古、大魔，还是后来的沙扎比等都是红色的，夏亚操纵这些机体风骚地驰骋在战场上，故被敌人称作“赤色彗星”。。