Age 15 - The first HOLY member seen in the series. Often works with Ryuho, if only to provide a mental balance, although it quickly becomes apparent that she has a crush on Ryuho. Although it is stated that she is an Alter user in the first episode, she does not use her Alter power until much later. Called Eternal Devote, her alter has the ability to bypass physical barriers; it's lowest form is somewhat similar to astral projection, and can deliver a shock wave of pain, or heal a person.
Scheris' devotion to Ryuhou is explained near the end of the series. Years ago, when she was a Native Alter, she was rescued from capture by Ryuho, an event that eventually led to her joining HOLY. She remembers this after finding Ryuho, who has been badly beaten by the Crystal, in Mujo's version of HOLY headquarters. Scheris uses her Alter power to bring Ryuho back from the brink of death, sacrificing herself in the process.
In the Manga Scheris can use her alter to heal and also can fuse herself with other alter users to boost their powers. When doing this she can control their bodies if they are unconscious as seen when Ryuho was brought to the brink of death protecting Scheris from a blow from one of the Super Holy members. She can leave their body's on her own will after fusing.