The OVA will be based on the Narumi Seo character map story event that was featured in the smartphone game in April 2018. Seo, who has a unique memory disorder, will appear alongside other heroes of the Seo Research Laboratory in the OVA.

Second season of .

Cinderella is the daughter of a wealthy duke who has remarried to provide her with a mother and sisters. When the Duke travels abroad, Cinderella discovers that her new family is anything but a family. With spoiled stepsisters and a harsh stepmother, Cindrella is forced to cook, clean and manage the household. Yet she remains cheerful, gentle and kind to her family, to her animal friends and to a mysterious boy, named Charles, who seems to have a connection with the prince of Emerald Castle. A whole new story on a classic fairytale. When Cinderella's cruel stepmother prevents her from attending the Royal Ball, she gets some unexpected help from the lovable mice Gus and Jaq, and from her Fairy Godmother.

On his way to a convenience store, Kazuya Shiina tries to defend two young girls from an armed assailant, only to end up getting stabbed himself and dying on the spot. This good deed allows him to be reborn with all his memories in another world as Cain von Silford, the third son of a margrave. When Cain turns five, a baptismal ceremony in the church grants him an audience to the seven gods who preside over the world. Not only do the gods fill him in on the circumstances of his reincarnation, but they also give Cain their respective divine protections—allowing him to use cheat-like abilities in swordsmanship, magic, and many other aspects. With these blessings, Cain sets out to live a fulfilling life that he deems a dream come true. However, it soon becomes clear that the gods have more plans for him than just a haphazard bestowal of overwhelming power.