为了找到魔王四煌星之中的第四人，西奇一行人出发前往时之行星米尔迪安 。

西奇一行人与红女士当面对质。焰见到了武神，不禁悲从中来。同时，德拉肯乔入侵红眼。

在红铁骑和西奇之间的战斗结束后，西奇一行人返回“伊甸星原”。他们不得不跟大家宣布一个坏消息。

Within the Belial Gore, Weisz dons an Arsenal suit in his fight against the Element 4 Spirit of Water, Laguna. However, he finds it difficult to gain the upper hand due to Laguna's various water attacks.

Although Rebecca and Happy go into Belial Gore to deliver medicine to the injured Weisz, they are found by the Sylph of the Wind and captured. Shiki, Homura, and Pino receive Rebecca's communications and go to the loading docks, only to find that Rebecca is not there and in her place is the Element 4 Sylph and another "surprising" individual.

Although Shiki and Homura want to deliver medicine to Weisz as soon as possible, they struggle with the attacks from Sylph of the Wind and his assistant, Jinn.

Rebecca is devastated by Shiki's death and Drakken Joe finally explains to her in detail what it is he wants to extract from her. Apparently, she has a very particular Ether Gear.