TV-Series
Description
Derieri serves as an elite warrior of the Demon Clan under the Demon King, holding the Commandment of Purity. Her appearance features long, spiky orange-blonde hair and demonic markings on her left cheek resembling a beast's open mouth. Her physique is partially obscured by her own darkness, concealing her missing left arm—a wound sustained fighting Sariel 3000 years ago. After a later battle with Nerobasta, her hair shortened significantly, mirroring her Holy War look. While defecting from the Ten Commandments, she temporarily wore human attire: a black skirt and sweater.
Her personality typically presents as laid-back and nonchalant, often expressing laziness or boredom. However, she possesses a volatile temper, easily provoked by mentions of her sister's death or encounters with Meliodas. She speaks distinctly, prefacing statements with phrases like "To say from the ass." After her sister's execution, she became more taciturn, though interactions with humans gradually restored her formerly open demeanor. She harbored intense hatred for the Goddess Clan due to their role in her sister's death during a broken treaty, though this animosity evolved into complex respect for Elizabeth Liones over time.
Derieri fought in the Holy War 3000 years ago as part of the Ten Commandments. She witnessed Ludociel execute imprisoned demons, including her sister, during failed negotiations involving Elizabeth, cementing her hatred for the Goddess Clan. In a subsequent battle against the Four Archangels, Derieri and Monspeet sacrificed six of their seven hearts to undergo the forbidden Indura Transformation, gaining immense power at the cost of rationality and physical form. Elizabeth's intervention purified them, saving their lives. Meliodas later spared them defenseless, an act Derieri overheard while conscious. The Demon Clan was sealed after the war until revived centuries later by Fraudrin.
Revived, Derieri joined the Ten Commandments' campaign to conquer Britannia, devouring human souls to regain strength. She killed the goddess Nerobasta during the assault on Liones. Blown away by Meliodas' Full Counter, she and Monspeet took refuge with humans. Sheltered by a farmland girl, Derieri developed empathy, visibly grieving when Estarossa killed the girl. This led her to defect from the Ten Commandments, intending to surrender her Commandment. Estarossa attacked them; Monspeet sacrificed himself to save her, leaving Derieri emotionally shattered. She fled, sensing Elizabeth's magic, and allied with former enemies like Sariel to rescue Elizabeth from Mael (formerly Estarossa). Mael fatally pierced her last heart during this mission. Before dying, she learned of Monspeet's love and expressed gratitude. Mael's magic reincarnated her as a human named Thetis.
Her abilities include a total power level of 52,000 (Magic: 1,500, Strength: 48,000, Spirit: 2,500). Her innate power, Combo Star, amplifies each consecutive attack by 200,000 pounds of force if uninterrupted; interruptions reset the count. She could transform into Indura by sacrificing six hearts. Her Commandment of Purity inflicted illness on those acting "impurely" in her presence. She demonstrated exceptional durability, surviving attacks like Tarmiel and Sariel's Omega Ark, and exhibited high sensory capabilities alongside Monspeet.
Key relationships define her journey. Monspeet was her closest companion, understanding her speech and silently protecting her; their bond deepened into mutual love, and his sacrifice profoundly impacted her. She respected Zeldris as a leader, trusting his judgment enough to defect without fearing punishment. She initially revered Meliodas as the Ten Commandments' leader but resented him after his betrayal, attempting to kill him twice. After his mercy and Monspeet's death, her hatred subsided into acceptance. Her relationship with Elizabeth evolved from vengeance-driven animosity to trust, culminating in Derieri risking her life to save Elizabeth from Mael.
Her personality typically presents as laid-back and nonchalant, often expressing laziness or boredom. However, she possesses a volatile temper, easily provoked by mentions of her sister's death or encounters with Meliodas. She speaks distinctly, prefacing statements with phrases like "To say from the ass." After her sister's execution, she became more taciturn, though interactions with humans gradually restored her formerly open demeanor. She harbored intense hatred for the Goddess Clan due to their role in her sister's death during a broken treaty, though this animosity evolved into complex respect for Elizabeth Liones over time.
Derieri fought in the Holy War 3000 years ago as part of the Ten Commandments. She witnessed Ludociel execute imprisoned demons, including her sister, during failed negotiations involving Elizabeth, cementing her hatred for the Goddess Clan. In a subsequent battle against the Four Archangels, Derieri and Monspeet sacrificed six of their seven hearts to undergo the forbidden Indura Transformation, gaining immense power at the cost of rationality and physical form. Elizabeth's intervention purified them, saving their lives. Meliodas later spared them defenseless, an act Derieri overheard while conscious. The Demon Clan was sealed after the war until revived centuries later by Fraudrin.
Revived, Derieri joined the Ten Commandments' campaign to conquer Britannia, devouring human souls to regain strength. She killed the goddess Nerobasta during the assault on Liones. Blown away by Meliodas' Full Counter, she and Monspeet took refuge with humans. Sheltered by a farmland girl, Derieri developed empathy, visibly grieving when Estarossa killed the girl. This led her to defect from the Ten Commandments, intending to surrender her Commandment. Estarossa attacked them; Monspeet sacrificed himself to save her, leaving Derieri emotionally shattered. She fled, sensing Elizabeth's magic, and allied with former enemies like Sariel to rescue Elizabeth from Mael (formerly Estarossa). Mael fatally pierced her last heart during this mission. Before dying, she learned of Monspeet's love and expressed gratitude. Mael's magic reincarnated her as a human named Thetis.
Her abilities include a total power level of 52,000 (Magic: 1,500, Strength: 48,000, Spirit: 2,500). Her innate power, Combo Star, amplifies each consecutive attack by 200,000 pounds of force if uninterrupted; interruptions reset the count. She could transform into Indura by sacrificing six hearts. Her Commandment of Purity inflicted illness on those acting "impurely" in her presence. She demonstrated exceptional durability, surviving attacks like Tarmiel and Sariel's Omega Ark, and exhibited high sensory capabilities alongside Monspeet.
Key relationships define her journey. Monspeet was her closest companion, understanding her speech and silently protecting her; their bond deepened into mutual love, and his sacrifice profoundly impacted her. She respected Zeldris as a leader, trusting his judgment enough to defect without fearing punishment. She initially revered Meliodas as the Ten Commandments' leader but resented him after his betrayal, attempting to kill him twice. After his mercy and Monspeet's death, her hatred subsided into acceptance. Her relationship with Elizabeth evolved from vengeance-driven animosity to trust, culminating in Derieri risking her life to save Elizabeth from Mael.