

The two of them have a long-standing relationship, having become very close partners, with Marian acting as a sort of mentor for Kagun, and even coaxing him to join GREMLIN, even after Kagun died and was resurrected as a sort of zombie by Othinus.

Marian appears once again during the fourth chapter, fighting off some of the main group alongside Jiren as they try to stop the two of them from summoning Aska and rescue Sorey. She is successful in her endeavor, even after encountering Libra and Makoto Naegi in the process, even mildly injuring Makoto during the siege, and then making her escape. Marian first appears within the third chapter of the event, leading a massive siege upon Knowhere, the Coalition's new base of operations, in order to steal the tip of Gungnir and kidnap Sorey in order to summon the Great Spirit Aska to lay a trap for it, heading a large number of forces between Jiren, zombies, and manipulated Mandalorians, courtesy of Revan. She explains the situation to everyone just as their memories of their affiliation with the Revanchist return to them. Marian appears briefly in the epilogue of the event, just as it is revealed to the main characters that the events of their trials and tribulations had been an elaborate simulation the entire time, seemingly constructed in part by Marian herself. She hops through it, presumably letting her travel back to the Revanchist HQ, with Kagun and DIO eventually following her later on, the portal closing before the pursuers could follow. When cornered by Ollerus, Fiamma of the Right, and Touma Kamijou, Marian manages to activate the device just in time while they are held off by DIO and Kagun. Marian appears briefly within the story, attempting to reactivate a dormant world-jumping device for use after she, Kagun Kihara, and Dio Brando traveled to one of many worlds within DIO's home universe in an attempt to find an Arrow, before DIO had realized that the only one that can affect him is the one that Giorno holds. Plot Involvement A Certain Bizarre Adventure It is known that, as a part of GREMLIN, before Marian's first appearance, Othinus had formed a partnership between GREMLIN and the Revanchist, allowing Marian access to new and far more advanced tools that allow her to operate with new devices, mostly those pertaining to interdimensional travel. Not much is otherwise known about her past, other than that she had been working to improve her tools on her own accord. Three years before the events of World War III, or the Fiamma Incident, she met a member of the Science Side, Kagun Kihara, and the two of them forged a close bond, before both of them later ended up joining GREMLIN under the leadership of Othinus. Marian is a Dvergr, in other words a dwarf, and is a magician who specializes in body modification magic, who works as a member of Othinus's GREMLIN organization. Marian is a recurring antagonist in A Certain Magical Index, particularly within the first half of the New Testament saga in which Othinus acts as the primary antagonist.
