Fics like Motherly Deceit and Negative Approval Reversed

FGO Within Chaldea Servants from different timelines and possible universes are summoned to the Call of their Master, but recently in Shirou Emiya's case, his Berserker Servant Kriemhild seems to be having trouble accepting a particular union between a Holy Saint from France and his theoretical son from another timeline, Sieg. Being the supposed 'Son' of Siegfried after inheriting his heart in his past life and adventure and reincarnating as a Servant as the same boy who charmed Jeanne had led to the two becoming an item when being summoned again in Chaledea. Kriemhild, however, doesn't approve of the French Battle Maiden one bit and seeks out Shirou's help in seducing her away from Sieg in hopes of splitting them up for good, but tables turn on her in the most unexpected yet expected ways with Shirou's help in keeping the peace.

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