The Most Heretical Last Boss Queen: From Villainess to Savior OP Song: “Kyuuseishu” by Tsukuyomi The Most Heretical Last Boss Queen: From Villainess to Savior OP Song: “Kyuuseishu” by Tsukuyomi View Reddit by Turbostrider27 – View Source Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *CommentName * Email * Website Save my name, email, and website in this browser for the next time I comment.