Zest

Zest is a Demon that was created by and served Zolgear as his maid, she was sent by the Demon Lord Faction to serve as a scout alongside Lars. After the defeat of Zolgear, she temporarily served Sheila, the mother of Lucia and Maria having lost her original purpose and complied with the demands of the Moderate Faction. She ultimately serves Basara as she is tied to him in the Master-Servant Contract in a manner similar to Mio and Yuki but instead uses Sheila's nature. Appearance Zest is a tall tanned skin and white-haired, young woman with a slim yet shapely figure and gold-green eyes. She has a rabbit tail and rabbit-ear-shaped horns (neither appears in her human form). Zolgear had created her from all of his tastes in women such as having a well-shaped and sturdy figure. Basara noted that after serving Sheila, Zest's breast size has increased considerably. Sheila explains that it is because being under Zolgear's control her body was 'restricted' and upon being freed from him her body returned to normal. After becoming Basara's servant Zest's breast size has grown considerably. Because of the constant Master-Servant Contract, and later the Vow, she becomes sexier and her breasts grow larger. Zest's battle attire consists of a tight black dress that reveals her middle chest, black shoulder pads and gold lining, white stockings, and black long boots that have a golden lining, this served as her main clothing until she came to serve Shella, who replaced it with a modest-looking maid attire. Power and Abilities Demon Powers Zest is a powerful demon that Zolgear made by using forbidden magic in an attempt to bring the woman he loved and lost back to life. She was powerful enough to be classified as an S-Rank Demon giving Yuki and Mio trouble despite them working in unison. Like Zolgear, she can unleash killing intent able to bind demon soldiers who tried to kill Basara. After forming a Master-Servant Pact with Basara, Zest's power increased to where she could fight against several Heroic Spirits alone. In volume 10, Zest is later shown to be able to fight against one of the Four Gods, Genbu who was considered to be the most powerful among them. Having formed a Master-Servant Vow with Basara, she is stated to have surpassed that of Zolgear. Claws: Zest has sharp claws akin to that of swords and combined with her speed, she is extremely deadly in close-quarters combat. It is shown in volume 3 when she was able to kill Lars' doppelganger in an instant. Her claws were also sharp enough to cut the Heroic Spirits that attacked Wilbert Castle.

Flight: Zest can use her wings to fly.

Magic Master: Zest is well-versed in the use of various forms of magic, displaying great skill and versatility. She is able to act as either a supporter or an attacker in battle. She could control humans from far away distances. Earth Magic: From her unique connection with the Virgo constellation, Zest carries a natural affinity with the earth element. She can control the concrete and terrain all around her almost without limit, as well as create marble and steel. Zest is also mostly seen using this magic to create powerful golems, which are able to act independently of each other.

Master-Servant Contract (Servant): Zest soon formed a master-servant pact with Basara in volume 5, thus she became his third servant. Like Yuki, she has much greater loyalty and trust as his maid and was able to attain far greater power from their contract. Zest later progress it into a Master-Servant Vow to transfer her Earth Element and was the quickest one to do so compared to the other girls. Other Skills Domestic Training: Having become Sheila's maid, Zest has become proficient in housework ranging from being a capable cook and cleaning taking most of the workload that Maria used to do in the Toujou Household, but she is notably better at doing it.