Mitsuki becomes possessed by the spirit of a young, amnesiac ghost named Hiyori. To pass on to the afterlife, Hiyori must "ascend" by experiencing love and fulfillment through Mitsuki. The catch? Hiyori forces Mitsuki to wear a supernatural chastity belt that can only be unlocked by performing increasingly bold and romantic acts with her stepbrother. Why It Stands Out
The story follows Mitsuki Kanzaki, a high school girl whose life is turned upside down when her mother remarries. Suddenly, she has a new stepbrother, Yuya, whom she finds difficult to bond with. However, family tension is the least of her worries. Recently, My Sister is Unusual
The anime features notable talent, including Junji Majima (known for Toradora! ) as the stepbrother Yuya, as noted by Crunchyroll News . Where to Watch Mitsuki becomes possessed by the spirit of a