After a handful of delays the OVA will finally be released by the end of this year!

Since the death of his parents, young Yuu has suffered considerably from neglect and abuse at the hands of his adoptive relatives, who leave him to his own resources to survive. Fortunately, a girl named Chiyo comes to his aid and offers to take care of Yuu while acting as his older sister. However, Chiyo is not what she seems, and Yuu knows all too well that her intentions are far from innocent. In exchange for her generosity, Yuu must supply Chiyo with his "life potential."

The OVA was announced at 2019 and was to be released in 2020. Sadly there were a lot of delays but the studio is still working on it and it is expected to be out this year! We will announce more news as soon as they arrive!