>>281623757
>they don't see Yoru as any sort of ally especially
Read the last chapter Poo. Fumiko and Yoshida are literally trying to save Asa/Yoru from getting mauled by Denji.
> save herself
By saving War devil first and foremost. Fumiko explained it to your retarded ass, only War devil can stop Death devil. If Shitji kills Asa/Yoru, Fumiko is fucked. She's trying to save Asa and Yoru as per Yoshida's orders.