Epsilon

The fifth seat of the Seven Shadows. Ages 15 to 17. A blue-haired twin-tailed elf with exceptional magical control abilities. Originally from a distinguished family, she was talented and proud, excelling in both arts and martial skills, but her life fell apart after becoming possessed by a demon, and was later saved by Shadow. On the public stage, she goes by the name Shiron, showcasing her piano skills and compositions taught by Shadow, and operates as a famous composer and pianist. She has a complex about her child-like physique due to hereditary traits and envies Beta, who naturally has a large bust. Her nickname "Meticulous" comes from her ability to launch magical slashes, a testament to her magical control. In "Master of Garden," she fights using a scythe formed from slime, in addition to her slashing attacks.

Upon seeing a slime bodysuit, she decided it was enhancing and underwent longer magical control training than anyone else, constantly observing the well-developed Beta and wearing the suit at all times except when sleeping to maintain her ideal proportions. (Her direct subordinates, including Kai and Omega, are already aware of this.) However, Shadow has realized that her bust is enhanced, and occasionally gazes at her, impressed by her different kind of magical control technique.

She usually maintains a strict demeanor with her members, but becomes overly sweet when interacting with Shadow, often excessively praising him during their long conversations.

Before mastering her exceptional magical control, she recalled being the second lowest in both intellect and combat ability among the Seven Shadows, with two others above her in overall ability. Feeling a crisis about her position due to her lack of standout strengths, she sought to seduce Shadow with her beauty, which led her to start using the slime bodysuit to alter her physique, during which she acquired her exceptional magical control.

Like Gamma, she refers to Shadow as "Master."