Maria Naruse is one of the main heroines of The Testament of Sister New Devil. She is a succubus and serves as a guardian to Mio Naruse. Although she seems playful and mischievous, Maria often hides deep worries and makes tough choices to protect those she loves. Her story is filled with suspense, secret plans, and dramatic rescues, making her stand out as both comic relief and a key player in major events.
Maria Naruse appears as a middle school third-year girl with a petite body. She is often seen with a cheerful look. When she uses a special magic key, she can transform her appearance to look more grown-up, and her body changes to be more like an older girl.
Maria loves to joke and tease, especially about inappropriate topics. She often pranks Basara Toujou and Mio Naruse, sometimes getting them into trouble. She enjoys making things awkward or funny, and she records their embarrassing moments to show others for fun. Although she acts mischievous, Maria is a caring and capable guardian who manages household chores well. She worries about Mio’s romantic life and sometimes makes things more complicated on purpose.
Maria is the child of Shella and Wilbert, making her the half-sister of Mio Naruse. She was sent by the moderate faction of the demon world to protect Mio Naruse and lives with Basara Toujou as his younger stepsister. Maria is a succubus, but her mother Shella was taken hostage, forcing her to act against her true wishes.
Maria is skilled in hand-to-hand combat and has superhuman strength, despite her small size. She is not good with attack magic but can boost her abilities with a magic key, which lets her change to a more powerful adult form. She can also use succubus powers that affect people’s minds.
- She is the younger stepsister of Basara Toujou and half-sister of Mio Naruse.
- Her mother is Shella, who also enjoys teasing and has connections to demon world leaders.
- Maria has an older sister named Rukia, who acts strict and serious.
- Maria was given the job to guard Mio Naruse and sometimes struggles with her own feelings for Basara Toujou.
Becoming Mio’s Guardian
Maria was sent by the moderate faction to keep Mio Naruse safe. She moved in with Basara Toujou and suggested they make a master-servant contract to protect Mio.
The Plan for Zolgear
Maria secretly made plans to offer Mio Naruse to Zolgear, following orders only because her mother Shella was being held hostage by Zolgear. Maria pretended to be betraying Mio, but truly, she just wanted to save her mother.
The Master-Servant Contract
Maria arranged for Basara Toujou and Mio Naruse to form a magical contract, making Basara the master. When Mio was weak from the contract's curse, Maria took this chance to hand Mio over to Zolgear—again, not by choice, but to save her mom.
Turning the Tables and Freedom
With help from Basara Toujou and Yahiro Takigawa, Maria was able to rescue her mother and free herself from Zolgear’s control. She finally escaped the role of betrayer and returned to her duty as Mio’s loyal guardian.
Feelings for Basara
When she tried to distract Basara Toujou under Zolgear’s orders by using her charms, Maria realized she had true feelings for Basara.
- Maria’s favorite hobby is teasing others and making jokes about adult topics.
- She is very good at all housework but once tried to cook using Mio’s underwear, causing trouble.
- Her bust size is 64 cm (AA cup) in
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