A Record of Mutual Sabotage with the Primordial Witch

I, Ling Ling, was possessed by a witch from another world. She seized control of my body and said she could come and go as she pleased! But while she occupies my body, I can go to her world and control her actions! And the spiritual energy in my world is the same kind of energy as the magic in the witch’s world! This witch doesn’t seem all that powerful, but the knowledge from her world is actually quite useful. It’s just... After I return to my own world, why am I suddenly being treated like a once-in-a-century genius? What did that witch do? “Hm? You want me, the mighty Primordial Witch, to get rid of slimes and goblins for the villagers...” In another world, the silver-haired witch burst out laughing as she looked over the list of available quests.