Lieselotte Sherlock

Lieselotte Sherlock is the twin sister of Selina who vanishes in the school library before Arata enrolled at this school. She is one of the Trinity Seven and is the last member of the Trinity Seven Arata met. At first, she was opposed by Arata and the other members of the Trinity Seven. After being defeated when she attacked the school, Arata helped her out of the time dimension that she is trapped in.

Personality
Lieselotte personality is somewhat perverted, flirty and playful. When she was battling the headmaster, she wasn't embarrassed to use her female charm to get a opening on the headmaster to defeat him. After being saved by Arata, she shows much affection towards him even to the point that she said she liked him to Rouge before supporting him in battle against another magic king, Abyss Trinity.

Appearance
Lieselotte is a beautiful young lady, who has flowing/long blonde hair that is tied up in twintales. She has purple eyes compared to her sister who has blue eyes. Her main attire consists of thigh boots, opera gloves, shorts,  And a cape like dress that leaves her midriff open that is held by two strings attached to her choker. During the Royal Biblia Academy Magic Research Presentation Festival, she wears a maid uniform.

History
She is the the "Acedia" of Trinity Seven and Serina's older twin sister. She is the former 2nd seat of the Royal Library Inspectors (A.K.A. Grimoire Security). She is a criminal who conducted an experiment to connect to the forbidden "Eternal Library." The "Magic King's Element" was sealed inside the Eternal Library. So in getting her hands on the element, she became a magic king candidate.

Ghost of the Biblica Academy Arc
As the other member of the Trinity Seven and Selina get together to investigate the 'ghost' in the library, she suddenly appear in front of them as an evil mage. Despite being an enemy, she and Arata initially acted very friendly with each other, due to their similar perverted and laidback behaviour, as well as their dislike of work. She took an immediately liking to him, finding him interesting and amusing. She does not mind his perverted behaviour, even playfully offering her own suggestive actions. Later, she successfully steal his magic by offering information on Hijiri if he joined her side to lower his guard.

Attack on Biblica Academy Arc
As Arata is recovering his magic learning Akio's Mantra Enhancement, she attacked the academy and encountering the principal. She eventually defeat him by using her female charm to get a opening on the headmaster to defeat him. She later then encounter the rest of the Trinity Seven. When she is on the verge of victory, Arata comes back from training to defeat her in her time dimension. After being defeated, Arata comfort and ask her to return with him to their friends. Unfortunately, her use of her Final Techniqa trapped her in her own time dimension. He promised her to master her magic, Logos Arts, to bring her back.

Ish Kerioth Arc
During Ish Kerioth's attack on Biblia Academy, she is able to return by using her sister, Selina's body. Together with Arata and the rest of Trinity Seven members, they are able to defeat Hijiri.

Sky Library Mission Arc
She used her to help prevent Arata from turning into Abyss Trinity after he acquired the Black Imperial Sword Judecca. She teach him to master her magic so he could control Judecca at his own will. She was surprised when he allowed her to steal part of his magic and proclaiming that she is his friend no matter who she was and that he liked all sides of her. She help him to master the Logos Art and subsequently bringing her back to the real world. She later then helped Arata to defeat another magic king, Abyss Trinity.

Acedia - Stagna
She is able to steal the research from the people whose magic power she has consumed. Her and her sister both use the logos arts. Mira taught her the tactics of aiming for your enemy's weak points.

Techniques

 * Chrono Calculation

Last Crest

 * The Lost Crest of her Archive, Baal Pressure removes the user and those they choose from time, basically freezing everything else in a single instant.  They cannot affect anything that is frozen. It is impossible to escape for the user from this frozen time without outside interference.

Relationships
Selina Sherlock - she loves her little sister

Arata Kasuga - As the last member of the Trinity Seven Arata meets, Lieselotte originally was missing before Arata transfered to Biblia Academy. She would suddenly reappear in front of him and the rest of the Trinity Seven, including her sister Selina, as an evil mage. Despite being an enemy, the two of them initially acted very friendly with each other, due to their similar perverted and laidback behavior, as well as their dislike of work. Although, Arata would disagree with her choice of stealing friends' magic. Nevertheless, Lieselotte took an immediately liking to him, finding him interesting and amusing. She also does not mind his perverted behavior, even playfully offering her own suggestive actions. However, she would up end up stealing his magic, offering information on Hijiri if he joined her side to lower his guard. Later on, he would recover his magic by learning Akio's Mantra Enchanment and eventually defeat her. Regardless of her actions, he would still attempt to comfort, asking her to return with him to their friends. Unfortunately, her use of her FInal Techniqa trapped her in her own time dimesnion. Promising to save her, he would become determined to master her magic, Logos Arts, to bring her back. During Ish Kerioth's attack on Biblia Academy, she would be able to return thanks to her sister Selina lending her body. When prompted by Hijiri to choose a side, Arata's appearance would ultimately cause her to side with him and the Trinity Seven. Since then, the both of them have grown very close, strongly trusting in one another despite their past. During the Sky Library mission, Lieselotte would help prevent Arata from turning into Abyss Trinity as well as teach him to master her magic so he could control Judecca. Believing that he didn't trust her, she was surprised when he allowed her to steal part of his magic, proclaiming that she was his friend no matter who she was and that he liked all sides of her. Hereafter, he would master the Logos Art with her help and bring her back to the real world. After that moment, Lieselotte has since become very grateful to Arata for saving her, caring deeply for him and getting jealous whenever he interacts with other girls. They are both willing to support and protect each other from danger. Out of all the Trinity Seven, they have kissed the most times.

Trivia

 * Before_and_after.jpg her debut, Lieselotte had a flat chest like her twin sister, but within a few chapters she boasts the second biggest breasts of the Trinity Seven with the size E, after Lilith's size F. It is unknown why, but one could speculate that after she absorbed arata's magic her body began to grow. Or it was simply overlooked by the author