A special release for Christmas in the first year of Reiwa, this rare project was produced in conjunction with Nankou Productions. At its center is the multi-talented gravure idol, Megumi Haruno. Based on the biblical tale of "Cain and Abel," this original story reimagines the narrative with twin sisters, exploring complex emotions of jealousy and deep sisterly bonds. The Nankou Productions version focuses on the elder sister, Megumi, while the Manly Spirit release centers on the younger sister, Aya. Both stories unfold on the same timeline and ultimately connect, forming a complete narrative. The production team poured immense effort into this ambitious structure. Showcasing Megumi Haruno's full range of talent and allure, this work features bold direction and highly sensual expression. Its intensity and quality are not to be missed.