Majokko Shimai no Yoyo to Nene  

Magical Sisters Yoyo & Nene, Majocco Classical, Yoyo & Nene - Die magischen Schwestern, 魔女っこ姉妹のヨヨとネネ, Majocco Shimai no Yoyo to Nene

"Noroiya Shimai," a manga written by Hirarin and serialized in Monthly Comic Ryuu, follows the story of two sisters working as "noroiya" (cursers) using magic in a fantasy world. One day, while investigating a sudden appearance of a big tree in a forest, they are transported to our world. Upon arrival, they encounter two children who are frightened by their unexpected arrival and rush back home. However, at home, the children's parents have transformed into monsters.