The Sister Who Was Forced to Become a Witch

"Ivli, are you ready to be my sister?" The black-haired witch smirked and put her hands on his neck. "I'll do it!" "Teacher Evelin! Please help me transplant this shining and exciting heart!" The blue-haired girl expectantly stuffed a piece of meat with body temperature into Evelin's hand. "It will be transplanted!" ＿＿＿＿＿ The age of steam, organ transplantation, gods and disasters, this is an epic story of a witch