Yu Amamiya, known as Eperis, appears in the OVA series *Angelium*. She is one of three angels—alongside Miki Yunaki and Chado-ko Asagiri—sent to Earth by Zeus, ruler of Heaven, to undergo a promotion examination. This exam requires them to work part-time at a flower shop, where they face trials secretly manipulated by Zeus. He exploits the situation to pursue inappropriate desires toward the young angels, acting without his wife Hera's knowledge. Yu's participation forms part of Zeus's scheme to interact with the angels under the pretext of overseeing their exam.