Talk:Main Quest: S I N/@comment-35082236-20181128120818/@comment-32751919-20181128142331

The reason is...(presumely, still wait for full translate)

First, this Lostbelt trying to kill her, second, she make the temporary deal with Chaldea, you help her but she will give you antidote (but she give it at the end of the story), third, it probably amuse her, forth, she want to messsing with Akuta.

That said, she help Chaldea and her character become more complex, but all of this event happen because of her. The worst part is after you read and understand Akuta's true backstory, Akuta become one of biggest bully's victim in FGO, and unlike Ibaraki, this isn't played for laugh.

PS. You can save Akuta by wait for next summon campaign...maybe...